# Audi A4 B8 2009–2016 Problems, Reliability & Repair Costs

Canonical: https://carcasefile.com/vehicles/audi-a4-2009-2016/

> Audi A4 B8 2009–2016: the oil-burning 2.0T years to avoid, timing chain tensioner risk, real repair costs, DIY fixes, and which years are the best used buy.

Case file · AUDI-A4-2009-2016 · B8 / B8.5 (8K (Typ 8K))

# Audi A4 2009–2016 Common problems, reliability & repair costs

The B8 A4 is a great-driving, sharp-looking compact luxury sedan that hides expensive engine maintenance. The early 2.0 TFSI (engine code CAEB, roughly 2009–2011.5) burns oil because of weak piston rings, the subject of a class-action settlement and extended warranty. Add a known timing-chain-tensioner weakness, direct-injection carbon buildup, and a plastic water pump, and you have a car that's cheap to buy and pricey to keep. The B8.5 (2013–2016) fixed the worst of it.

[Shop Audi A4 parts on Amazon →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2BA4%2Bparts) Verified part numbers below Affiliate link to Amazon. We may earn a commission if you buy. Your price is the same, and a commission never changes a verdict.

Case data plate AUDI-A4-2009-2016

Case score
4/10

Best years

2013, 2014, 2015

Avoid

2009–2011.5 (CAEB oil consumption + early timing-chain tensi +1 more

Status
Reviewed
Amended 2026-08-30

[How we score →](https://carcasefile.com/methodology/)

Exhibit A · Audi A4 OSX · Public domain · [Wikimedia](https://commons.wikimedia.org/wiki/File:2009_Audi_A4_(8K_MY10%29_2.0_TDI_sedan_(2015-07-09%29_01.jpg)

Case verdict At a glance

Case score
4/10

Best years

2013, 2014, 2015, 2016

Years to avoid

2009–2011.5 (CAEB oil consumption + early timing-chain tensi +1 more

Worst system

engine

#1 problem

**Excessive oil consumption (2.0 TFSI, CAEB)** · $1,500–$6,000 at an independent shop · typically around 40k–100k mi

Companion pages for this car generation:

📄 Dossier Overview Active Page [📋 Inspection Checklist Field Guide ->](https://carcasefile.com/vehicles/audi-a4-2009-2016/checklist/) [💰 Maintenance Costs 5-Year Ledger ->](https://carcasefile.com/vehicles/audi-a4-2009-2016/cost-to-maintain/) [🩺 Audit a Quote Estimate Case File ->](https://carcasefile.com/estimate-doctor/?vehicle=Audi%20A4)

## Engines

- **CAEB** · 2.0L gasoline, 211 hp
- **CPMA / CFKA** · 2.0L gasoline, 211 hp
- **CALA (3.2 FSI)** · 3.2L gasoline, 265 hp

## Transmissions

- **ZF 8HP / Tiptronic**· automatic, 8-speed
- **Multitronic**· cvt
- **manual**, 6-speed

## Drivetrain

FWD / AWD

## Body

sedan, wagon (Avant / allroad)

## Trims

Premium, Premium Plus, Prestige, allroad (2013+)

Parts desk

## Audi A4 part-number cross-reference

Start from the OEM number, then pick the brand you trust. Verified equivalents for the Audi A4 (2009–2016).

Part links go to Amazon, and to eBay where Amazon does not stock the part.
Affiliate links, so we may earn a commission if you buy. Your price is
unchanged, and a commission never changes a verdict.

### Oil filter

2.0L TFSI (CAEB / CPMA / CFKA / CAED) 4-cyl
swipe →

OEM part
Audi
[Find Audi oil filter on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00P17UTCG)

Cross-ref Verified fit · 07.26

Mann
[Look up Mann oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB002UZGCSW)

Cross-ref Verified fit · 07.26

Mahle
[Check Mahle oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0080E6TQM)

Cross-ref Verified fit · 07.26

Wix
[See Wix oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB002M6KBFO)

Cross-ref Verified fit · 07.26

Fram
[Compare Fram oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DFram%2BPH610)

Cross-ref Verified fit · 07.26

Bosch
[Find Bosch oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB002EBSLA4)

Cross-ref Verified fit · 07.26

Purolator

PureONE variant PL35895
[Look up Purolator oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0031HPNK6)

Verified via: [JH Motorsports - Mann oil filter, B8-B8.5 A4 2.0T fitment (OEM 06J115403Q)](https://jhmotorsports.com/oil-filter-mann-for-08-audi-vw-2-0t-a3-a4-a6-tt-gti-gli-w-ccta-cbfa-and-others.html), [FindItParts - Wix 57561 cross-reference (Mann W719/45, Fram PH610, Bosch, Purolator; A4 2.0T)](https://www.finditparts.com/products/2524494/wix-filters-57561), [AutohausAZ - Mahle OC456 / 06J115403Q application](https://www.autohausaz.com/pn/MH-06J115403Q)

### Oil filter

3.2L FSI V6 (CALA), early B8 (US ~2009-2012)
swipe →

OEM part
Audi

supersedes 06E115562A; B8 V6 uses the 06E family, NOT the older B7's 06D115562
[Check Audi oil filter on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B06E115562C)

Cross-ref Verified fit · 07.26

Mann
[See Mann oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB017XS32JW)

Cross-ref Verified fit · 07.26

Hengst
[Compare Hengst oil filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB07QQFFPDY)

Verified via: [FCP Euro - Mann HU7029z / 06E115562C, A4-A5-A6-Q5 Quattro V6](https://www.fcpeuro.com/products/audi-vw-oil-filter-a4-a6-q5-a5-quattro-mann-06e115562c), [Europa Parts - Mann 06E115562A oil filter (3.0T / 3.2L V6)](https://www.europaparts.com/oil-filter-06e115562a.html)

### Engine air filter

2.0L TFSI 4-cyl (also 1.8T)
swipe →

OEM part
Audi

revisions 8R0133843C / 8R0133843D
[Find Audi engine air filter on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00KYLBHUM)

Cross-ref Verified fit · 07.26

Mann
[Look up Mann engine air filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB003YNGYYG)

Cross-ref Verified fit · 07.26

Hengst
[Check Hengst engine air filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB007008AOQ)

Verified via: [Audi USA parts catalog - 8R0133843K, A4 engine air filter](https://parts.audiusa.com/p/Audi__A4/Engine-Air-Filter/48621260/8R0133843K.html), [eEuroparts - Mann C32130 = 8R0133843K (A4 B8 2.0T)](https://www.eeuroparts.com/Parts/43428/Engine-Air-Filter-C32130/), [Europa Parts - Hengst 8R0133843K, A4/A5/Q5/allroad B8 2.0T](https://www.europaparts.com/air-filter-8r0133843k.html)

### Engine air filter

3.2L FSI V6 (CALA) - the V6 airbox filter (shared with 3.0T S4/S5)
swipe →

OEM part
Audi

V6 airbox filter; do NOT confuse with the 2.0T's 8R0133843K
[See Audi engine air filter on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00OW2NXCY)

Cross-ref Verified fit · 07.26

Mann
[Compare Mann engine air filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DMann%2BC16114%252F2x)

Cross-ref Verified fit · 07.26

Hengst
[Find Hengst engine air filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00D3DFHT0)

Verified via: [FCP Euro - Mann C16114/2x / 8K0133843 (A4/S4/S5/Q5/SQ5 Quattro V6)](https://www.fcpeuro.com/products/audi-air-filter-mann-8k0133843), [FCP Euro - Hengst E675LD157 / 8K0133843 (B8 V6)](https://www.fcpeuro.com/products/audi-air-filter-a5-quattro-s5-q5-s4-a4-quattro-a5-e675ld157)

### Cabin air filter

swipe →

OEM part
Audi

activated-charcoal versions 8K0819439A / 8K0819439B / 8K0819439C; platform-wide across all B8/B8.5 engines
[Look up Audi cabin air filter on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00P17R6T0)

Cross-ref Verified fit · 07.26

Mann

activated-charcoal; non-carbon version is CU2450
[Check Mann cabin air filter](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB074FYZDS7)

Verified via: [Audi USA parts catalog - 8K0819439 A4 cabin air filter](https://parts.audiusa.com/p/Audi__A4/Cabin-Air-Filter/48616688/8K0819439.html), [AutohausAZ - Mann CUK2450 = 8K0819439A charcoal cabin filter](https://www.autohausaz.com/pn/8K0819439A)

### Spark plugs

2.0L TFSI 4-cyl (set of 4)
swipe →

OEM part
Audi

OE gap ~0.7mm / 0.028in for the turbo; factory fitted NGK or Bosch
[See Audi spark plugs on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00OW2UAYI)

Cross-ref Verified fit · 07.26

NGK

NGK stock no. 1675, Laser Platinum
[Compare NGK spark plugs](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB007WR66QQ)

Cross-ref Verified fit · 07.26

Bosch

OE Bosch double-platinum equivalent
[Find Bosch spark plugs](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DBosch%2B06H905611)

Verified via: [AutohausAZ - NGK PFR7S8EG (1675) = 06H905601A, engines incl. CAEB/CAED/CPMA](https://www.autohausaz.com/pn/PFR7S8EG), [JH Motorsports - NGK OEM plug for B8 A4/A5 2.0T (06H905601A)](https://jhmotorsports.com/spark-plug-ngk-oem-laser-platinum-for-audi-b8-a4-a5-q5-allroad-and-vw-w-2-0t-fsi-2-0t-tfsi-2-0t-tsi-and-audi-rs5-4-2l-v8.html)

### Spark plugs

3.2L FSI V6 (CALA), set of 6
swipe →

OEM part
Audi
[Look up Audi spark plugs on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00OW2U30E)

Cross-ref Verified fit · 07.26

NGK

NGK stock no. 5874; sold as set of 6 for the 3.2 V6
[Check NGK spark plugs](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00449WURO)

Verified via: [Europa Parts - NGK 101905611A, A4/A5/A6/Q5 3.2L V6](https://www.europaparts.com/spark-plug-101905611a.html), [Amazon - NGK PFR6U-11G (5874) OEM plug set for Audi 3.2L 08-12](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2F08-12-Spark-NGK-PFR6U-11G-ignition%2Fdp%2FB00E3OIEE8&raw=1)

### Front brake pads

A4 2.0T / 3.2 (non-S4) with 320mm front rotors; verify by VIN/brake package
swipe →

OEM part
Audi

revision suffixes E/H/K/R; S4/S5 use larger pads
[See Audi front brake pads on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B8K0698151)

Cross-ref Verified fit · 07.26

Textar

FMSI D1322, OE supplier
[Compare Textar front brake pads](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DTextar%2B8K0698151H)

Cross-ref Verified fit · 07.26

Akebono

Euro Ceramic, ref EUR1322 / D1322
[Find Akebono front brake pads](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAkebono%2B8K0698151H)

Verified via: [Audi USA parts catalog - 8K0698151R front disc brake pad set, A4](https://parts.audiusa.com/p/Audi__A4/Disc-Brake-Pad-Set-Front/105707803/8K0698151R.html), [Europa Parts - Textar 8K0698151H front pad set (D1322)](https://europaparts.com/brake-pad-set-8k0698151h-textar.html), [Europa Parts - Akebono 8K0698151H front pad set](https://www.europaparts.com/brake-pad-set-8k0698151h-akebono.html)

### Wiper blades

swipe →

OEM part
Audi

B8 push-button/bayonet mount; sizes are platform-wide
[Look up Audi wiper blades on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B24in%2Bdriver%2B%252B%2B20in%2Bpassenger%2B%2528600mm%2B%252F%2B500mm%2529)

Cross-ref Verified fit · 07.26

Bosch

beam-blade set sized 24in driver, 20in passenger
[Check Bosch wiper blades](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DBosch%2BAerotwin%2B%252F%2BIcon%2Bbeam%252C%2B24in%2B%252B%2B20in)

Verified via: [AutoZone - 2016 A4 Quattro windshield wiper sizes (24in/20in)](https://www.autozone.com/ignition-tune-up-and-routine-maintenance/wiper-blade-windshield/audi/a4-quattro/2016), [iFixit - 2009-2016 Audi A4 (B8) wiper replacement guide](https://www.ifixit.com/Guide/How+to+Replace+2009+2010+2011+2012+2013+2014+2015+2016+Audi+A4+(B8%29+Windshield+Wipers/153674)

### Serpentine / accessory belt

2.0L TFSI - main accessory drive belt (6-rib x 1590mm); covers B8 and B8.5 2.0T
swipe →

OEM part
Audi

also 06H903137C; 3.2 V6 (CALA) belt not independently verified - omitted
[See Audi serpentine / accessory belt on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B06B903137D)

Cross-ref Verified fit · 07.26

Continental

aka 6K1590
[Compare Continental serpentine / accessory belt](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0068MXL6O)

Verified via: [Europa Parts - Continental 06B903137D / 6PK1590, A4/A5/Q5 1.8T/2.0T](https://www.europaparts.com/accessory-drive-belt-06b903137d.html), [AutohausAZ - Continental 6PK1590 = 06B903137C/D, 06H903137C](https://www.autohausaz.com/pn/6PK1590)

### Battery

swipe →

OEM part
Audi / VARTA

AGM; a new battery must be coded/registered to the car's energy-management adaptation
[Find Audi / VARTA battery on Amazon](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B%252F%2BVARTA%2BBCI%2BGroup%2B94R%2B%2528DIN%2BH7%2529%2BAGM%252C%2B%257E75Ah%2B%252F%2B420A%2B%2528PR%2Bcode%2BJ1N%2529)

Cross-ref Verified fit · 07.26

Bosch
[Look up Bosch battery](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB010T855YI)

Cross-ref Verified fit · 07.26

ACDelco
[Check ACDelco battery](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB006N91C2M)

Cross-ref Verified fit · 07.26

Duralast
[See Duralast battery](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DDuralast%2BGroup%2B94R%2B%2528H7%2529%2BAGM)

Verified via: [AutoZone - Audi A4 Group 94R battery listing](https://www.autozone.com/batteries-starting-and-charging/battery/audi/a4/2017/b/group-size/94r), [Audizine - B8.5 A4 battery (94R/H7 AGM, PR codes) discussion](https://www.audizine.com/forum/showthread.php/919811-audi-b8-5-a4-battery)

Amazon and eBay affiliate links. Prices unchanged for you. Confirm fitment against your VIN; mid-generation changes exist.

Verdict

## Should I buy a 2009–2016 Audi A4?

Buy with your eyes open. A clean B8 A4 quattro drives and feels far more expensive than it costs to buy used. That's the trap. The early 2.0 TFSI (CAEB, ~2009–2011.5) is the one to scrutinize: confirm whether it burns oil and whether the piston-ring / PCV work was done. The timing chain tensioner is the other big-ticket worry on early cars; a documented updated tensioner is a real plus. The B8.5 facelift (2013–2016) is the smarter buy, with revised engine internals and fewer of the early gremlins. Prefer quattro with the 8-speed automatic over the FWD Multitronic. Budget for premium maintenance no matter which one you pick; this is not a cheap car to own.

Best years

2013, 2014, 2015, 2016

Years to avoid

2009–2011.5 (CAEB oil consumption + early timing-chain tensioner), FWD Multitronic CVT cars (any year) without service history

Inspection Companion

### Pre-Purchase Checklist for Audi A4

[Open Field Checklist Page ->](https://carcasefile.com/vehicles/audi-a4-2009-2016/checklist/)

- ☐ Check the oil level and condition cold, and ask the seller how often they top off. Early 2.0T cars burning a quart every 1,000–1,500 miles is the classic ring/PCV symptom.
- ☐ Listen for a rattle on cold start-up, especially the first second or two. That's the timing-chain-tensioner tell. Ask for proof the updated tensioner was installed.
- ☐ Pull service records and look for the oil-consumption repair (PCV breather and/or piston rings) on 2009–2012 cars; a documented fix is a green flag, not a red one.
- ☐ Confirm drivetrain: prefer quattro with the conventional automatic over a FWD Multitronic CVT, which is the costliest transmission to fix.
- ☐ Watch for coolant loss, a sweet smell, or low-coolant warnings. The plastic water pump and thermostat housing are known leak points.
- ☐ Expect some rough idle / hesitation from direct-injection carbon buildup on higher-mileage cars; factor a walnut-blast cleaning into your budget.
- ☐ Scan for stored codes before buying. High-pressure fuel pump, ignition coils, and PCV faults are common, and a clean scan tells you a lot.
- ☐ Check that all electronics work (MMI, windows, sensors); electrical niggles are common and annoying on these.

Verified-fit parts for the Audi A4 (2009–2016).

Parts desk

Parts cross-reference

OEM number first, verified equivalents below it. Links go to Amazon.

Oil filter

2.0L TFSI (CAEB / CPMA / CFKA / CAED) 4-cyl

- [OEM Audi 06J115403Q →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00P17UTCG)
- [Mann W719/45 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB002UZGCSW)
- [Mahle OC456 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0080E6TQM)
- [Wix 57561 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB002M6KBFO)
- [Fram PH610 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DFram%2BPH610)
- [Bosch 3330 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB002EBSLA4)
- [Purolator L35895 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0031HPNK6)

Oil filter

3.2L FSI V6 (CALA), early B8 (US ~2009-2012)

- [OEM Audi 06E115562C →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B06E115562C)
- [Mann HU7029z →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB017XS32JW)
- [Hengst E864H D184 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB07QQFFPDY)

Engine air filter

2.0L TFSI 4-cyl (also 1.8T)

- [OEM Audi 8R0133843K →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00KYLBHUM)
- [Mann C32130 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB003YNGYYG)
- [Hengst E676L01 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB007008AOQ)

Engine air filter

3.2L FSI V6 (CALA) - the V6 airbox filter (shared with 3.0T S4/S5)

- [OEM Audi 8K0133843 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00OW2NXCY)
- [Mann C16114/2x →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DMann%2BC16114%252F2x)
- [Hengst E675L D157 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00D3DFHT0)

Cabin air filter

- [OEM Audi 8K0819439 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00P17R6T0)
- [Mann CUK2450 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB074FYZDS7)

Spark plugs

2.0L TFSI 4-cyl (set of 4)

- [OEM Audi 06H905601A →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00OW2UAYI)
- [NGK PFR7S8EG →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB007WR66QQ)
- [Bosch 06H905611 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DBosch%2B06H905611)

Spark plugs

3.2L FSI V6 (CALA), set of 6

- [OEM Audi 101905611A →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00OW2U30E)
- [NGK PFR6U-11G →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB00449WURO)

Front brake pads

A4 2.0T / 3.2 (non-S4) with 320mm front rotors; verify by VIN/brake package

- [OEM Audi 8K0698151 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B8K0698151)
- [Textar 8K0698151H →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DTextar%2B8K0698151H)
- [Akebono 8K0698151H →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAkebono%2B8K0698151H)

Wiper blades

- [OEM Audi 24in driver + 20in passenger (600mm / 500mm) →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B24in%2Bdriver%2B%252B%2B20in%2Bpassenger%2B%2528600mm%2B%252F%2B500mm%2529)
- [Bosch Aerotwin / Icon beam, 24in + 20in →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DBosch%2BAerotwin%2B%252F%2BIcon%2Bbeam%252C%2B24in%2B%252B%2B20in)

Serpentine / accessory belt

2.0L TFSI - main accessory drive belt (6-rib x 1590mm); covers B8 and B8.5 2.0T

- [OEM Audi 06B903137D →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B06B903137D)
- [Continental 6PK1590 →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB0068MXL6O)

Battery

- [OEM Audi / VARTA BCI Group 94R (DIN H7) AGM, ~75Ah / 420A (PR code J1N) →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DAudi%2B%252F%2BVARTA%2BBCI%2BGroup%2B94R%2B%2528DIN%2BH7%2529%2BAGM%252C%2B%257E75Ah%2B%252F%2B420A%2B%2528PR%2Bcode%2BJ1N%2529)
- [Bosch Group 94R AGM →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB010T855YI)
- [ACDelco 94RAGM →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fdp%2FB006N91C2M)
- [Duralast Group 94R (H7) AGM →](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3DDuralast%2BGroup%2B94R%2B%2528H7%2529%2BAGM)

Confirm fitment against your VIN. Mid-generation changes exist. Affiliate links. We may earn a commission at no cost to you.

Known faults

## Common Audi A4 problems & repair costs

### Excessive oil consumption (2.0 TFSI, CAEB)

$1,500–$6,000

engine severe 2009–2011.5 (CAEB engine), into 2012 ~40k–100k mi

**Symptoms:** Burning oil with no visible leak, often a quart every 1,000–1,500 miles. Low-oil warnings between changes, blue smoke under load, fouled plugs. Caused by weak piston rings and a PCV system that pulls oil into the intake.

**Fix:** First step is usually a new PCV breather/valve to lower crankcase pressure (cheaper). If that doesn't cure it, the real fix is replacing the piston rings with the updated design, an engine-out / pistons-out job that runs into the thousands. A class-action settlement provided an extended warranty (75% of repair cost to 9 years / 90,000 miles, and up to 100% of consequential engine damage) on many affected models; check eligibility by VIN.

Sources: [CarComplaints: Audi piston lawsuit settlement reached (2024)](https://www.carcomplaints.com/news/2024/audi-piston-lawsuit-settlement-reached.shtml), [Official Audi piston/oil-consumption settlement site](https://www.pistonsettlement.com/), [Alex's Autohaus: Common Problems on the B8 Audi A4](https://alexsautohaus.com/common-problems-on-the-b8-audi-a4/)

### Timing chain tensioner failure (2.0 TFSI)

$900–$2,500

engine severe 2009–2013 (early B8 2.0T) ~60k–120k mi

**Symptoms:** A rattle from the engine at cold start, lasting a second or two before oil pressure builds. If the tensioner fails outright, the chain goes slack, the engine jumps timing, and valves hit pistons. That's a destroyed motor.

**Fix:** Replace the tensioner (and chain/guides as a set if worn) with Audi's updated-design tensioner. Done as preventive maintenance it's a four-figure job; done after a failure it can mean a new engine. A documented updated tensioner on an early car is worth paying for.

Sources: [Alex's Autohaus: Common Problems on the B8 Audi A4](https://alexsautohaus.com/common-problems-on-the-b8-audi-a4/), [RepairPal: A4 timing chain tensioner replacement cost](https://repairpal.com/estimator/audi/a4/timing-chain-tensioner-replacement-cost), [AudiWorld: B8.5 timing chain discussion](https://www.audiworld.com/forums/a4-b8-platform-discussion-128/timing-chain-issue-a4-b8-5-a-3043467/)

### Intake-valve carbon buildup (direct injection)

$400–$900

engine moderate 2009–2016 ~70k+ mi

**Symptoms:** Rough or shaky idle, cold-start misfires, hesitation, and a gradual drop in fuel economy and power. Inherent to direct-injection engines that don't wash the back of the intake valves with fuel.

**Fix:** Walnut-shell (media) blasting of the intake valves with the intake manifold removed. Treat it as periodic maintenance. Many owners do it every 60k–80k miles.

Sources: [MB Auto, Common Audi issues: timing chain & carbon buildup](https://mbautoinc.com/common-audi-repair-issues-timing-chain-carbon-buildup/), [Alex's Autohaus: Common Problems on the B8 Audi A4](https://alexsautohaus.com/common-problems-on-the-b8-audi-a4/)

### Water pump / thermostat housing coolant leak

$600–$1,100

cooling moderate 2009–2016 ~60k–100k mi

**Symptoms:** Slow coolant loss, sweet smell, low-coolant warnings, or overheating. The plastic water pump and thermostat assembly crack and leak with age and heat cycling.

**Fix:** Replace the water pump and thermostat as an assembly (they're integrated on this engine), refill and bleed the cooling system. Common, well-understood European-shop job.

Sources: [Bromley Vehicle Test Centre: Audi A4 common engine problems](https://garageservicesbromley.com/blog/audi-a4-problems-common-engine-issues-and-solutions/), [CarChecker: A4 2.0 TFSI water pump & carbon](https://www.carchecker.pro/reports/audi_a4_b9_2.0_tfsi.html)

### High-pressure fuel pump (HPFP) failure

$500–$1,200

fuel moderate 2009–2016 ~70k+ mi

**Symptoms:** Long cranking, hard or no start, stalling, rough running, and a fuel-pressure or misfire code. The cam-driven HPFP and its follower wear over time.

**Fix:** Replace the high-pressure fuel pump (and inspect the cam follower). Straightforward for a European specialist; parts are the bulk of the cost.

Sources: [Alex's Autohaus: Common Problems on the B8 Audi A4](https://alexsautohaus.com/common-problems-on-the-b8-audi-a4/), [Bavarian Rennsport: Audi common problems](https://www.bavarianrennsport.com/car-brands/audi/common-problems/)

This is an inexpensive car to buy and a genuinely expensive one to own. The 2.0 TFSI's oil habit, the early timing-chain tensioner, carbon cleaning, the water pump, and an eventual high-pressure fuel pump are all real line items, and Audi parts plus European-specialist labor aren't cheap. Routine stuff (brakes, coil packs, control arms) is normal-luxury-car money, not economy-car money. A well-kept B8.5 quattro that's already had the big jobs done can be a great value; a cheap, undocumented early 2.0T is how people end up upside down on repairs. Find a trusted independent Audi shop. Dealer pricing makes everything worse.

Cost calculator

### What will this Audi A4 cost you by a given mileage?

Drag to a mileage. We total the documented problems whose typical onset falls at or before it. The same cost ranges listed above, nothing new invented.

100k mi

$0 estimated repair range

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Have a repair quote for this Audi A4?

Audit against OEM book times, uncover duplicate pad and rotor labor, and verify parts markups.

[Audit Repair Estimate ->](https://carcasefile.com/estimate-doctor/?vehicle=Audi%20A4)

DIY repairs

## How to fix common Audi A4 problems (DIY)

### Replace the PCV valve / breather

moderate 1–2 hrs saves ~$150–$300

**Tools:** Socket set + Torx/Allen bits (T25/T30), Flat trim tool, Shop towels

- Disconnect the battery negative terminal and let the engine cool.
- Remove the engine cover and locate the PCV valve on the valve cover / intake side.
- Unclip the breather hoses and remove the PCV valve hold-down screws.
- Fit the new PCV valve with a fresh gasket/seal, reconnect all hoses until they click.
- Reconnect the battery, start the engine, and check for vacuum leaks and a settled idle.

Parts

- [PCV valve / breather (2.0 TFSI EA888)](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3D2009-2016%2Baudi%2Ba4%2B2.0t%2Bpcv%2Bvalve) · Amazon $40–$90

### Replace ignition coils & spark plugs

easy 1 hr saves ~$120–$250

**Tools:** 5/8" spark plug socket + extension, Ratchet, Torque wrench, Small pry tool for coil connectors

- Engine cold, remove the engine cover to expose the four coil packs.
- Unclip each coil connector, then pull the coils straight up out of the plug wells.
- Remove the old plugs, gap-check the new plugs, and torque them to spec.
- Press the coils back in until seated and reconnect each connector.
- Start the engine and confirm a smooth idle with no misfire light.

Parts

- [Ignition coil set (2.0 TFSI)](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3D2009-2016%2Baudi%2Ba4%2B2.0t%2Bignition%2Bcoil%2Bset) · Amazon $60–$140
- [Spark plugs (set of 4, 2.0 TFSI)](https://carcasefile.com/go?u=https%3A%2F%2Fwww.amazon.com%2Fs%3Fk%3D2009-2016%2Baudi%2Ba4%2B2.0t%2Bspark%2Bplugs) · Amazon $25–$50

Some parts links are affiliate links. We may earn a commission at no cost to you. We only list parts that fit this generation.

## The short version

The B8 Audi A4 (2009–2016) is one of the best-driving used compact luxury sedans you can buy cheap, and that low price is exactly the trap. It looks and feels like a far more expensive car, but the running costs are pure Audi.

The headline issue is the early **2.0 TFSI** engine (code **CAEB**, roughly 2009–2011.5): weak piston rings plus a PCV system that feeds oil into the intake mean these engines *burn oil*, sometimes a quart every 1,000–1,500 miles. It got bad enough to trigger a class-action settlement and an extended warranty covering most of the repair cost on affected cars.

Right behind it is the **timing chain tensioner**. On early 2.0T engines the original tensioner can fail, let the chain go slack, and let the engine jump timing, which destroys the motor. The tell is a rattle for a second or two at cold start. Audi released an updated tensioner, and a car with proof it was installed is worth real money.

## What that means when you’re shopping

If you’re looking at a **2009–2012** 2.0T, treat two things as must-clear before you buy: does it burn oil, and was the updated tensioner installed? Service records showing the oil-consumption fix (PCV and/or rings) and the tensioner update turn a scary car into a reasonable one. No records plus a cold-start rattle plus a dipstick that’s low means walk away.

If you’re looking at a **2013–2016 B8.5**, you’ve cleared most of the worst. Audi revised the engine internals, and these are the smarter used buy. Prefer **quattro** with the conventional 8-speed automatic over a front-wheel-drive **Multitronic** CVT, which is the costliest transmission here to fix.

Everything else is normal premium-German ownership: direct-injection carbon buildup that wants a periodic walnut-blast cleaning, a plastic water pump that eventually leaks, an aging high-pressure fuel pump, and the usual coils and control arms. None of it is a deal-breaker, but all of it costs Audi money, so find a good independent specialist before you buy, not after.

**How this file is built:** failure modes and cost ranges are compiled from NHTSA and CarComplaints data, the Audi piston/oil-consumption class-action settlement, European-specialist shop write-ups, and owner forums, then sanity-checked against shop-floor experience. Cost figures are 2024–2026 US independent-shop estimates and vary by region. Spot something off? [Tell us](https://carcasefile.com/disclaimer/).

Myths, checked

## Viral car myths, checked against this car

Misleading

### [Is the "$1 Japanese oil trick" that stops engine wear forever real?](https://carcasefile.com/claims/1-dollar-japanese-oil-trick-mos2-engine-wear/)

The 'Japanese oil trick' is almost certainly MoS2 (molybdenum disulfide), a real industrial friction modifier. It is German, not Japanese (Liqui Moly popularized it), sold openly at every parts store for $15-20, has real but modest measured friction benefits, and was never buried by anyone.

Mostly False

### [Do shops lose money on cheap oil changes? We opened a real shop's books to find out.](https://carcasefile.com/claims/59-dollar-oil-change-loss-leader/)

A quick lube's true all-in cost is roughly $16–40 per car. Even a $59 special turns a gross profit before the upsells start. The 'below cost' story is only true at full-service shops doing far more work per visit, which is a different product wearing the same name.

Dangerous

### [Is the "$2 liquid that destroys engine sludge forever" real? Our shop-floor verdict.](https://carcasefile.com/claims/2-dollar-engine-sludge-destroyer-liquid/)

An aggressive solvent flush on a high-mileage engine is a textbook way to spin a bearing. The viral 'kitchen-cabinet flush' is folklore that real shops spend money cleaning up after.

Misleading

### [Is the "$2 liquid that stops any leak" really banned in 11 states?](https://carcasefile.com/claims/2-dollar-stop-leak-banned-11-states/)

Automotive stop-leak products are not banned in any US state. The products are real (Bar's Leaks, BlueDevil), they work in specific narrow situations, and they can permanently damage your cooling or oiling system if applied to the wrong leak.

Appendix

## Frequently asked questions

### Which Audi A4 B8 years should I avoid?

Be most careful with the 2009 to roughly 2011.5 cars using the CAEB 2.0 TFSI. Those are the ones tied to excessive oil consumption (piston rings/PCV) and the early timing-chain-tensioner weakness. They aren't automatically bad, but you must verify the oil-consumption fix and the updated tensioner. The 2013–2016 B8.5 facelift cars are the safer used buy.

### Why does my Audi A4 2.0T burn so much oil?

Early 2.0 TFSI engines (CAEB) have weak piston rings plus a PCV system that lets oil into the intake, so they consume oil, sometimes a quart every 1,000–1,500 miles. A new PCV breather sometimes helps; the permanent fix is updated piston rings. A class-action settlement created an extended warranty covering most of the repair cost on many affected cars. Check your VIN at the settlement site.

### Is the timing chain tensioner really that serious?

Yes. On early B8 2.0T engines the original tensioner can fail and let the chain go slack, which makes the engine jump timing and destroy itself. The warning sign is a rattle for a second or two at cold start. Audi released an updated tensioner; a car with documented proof it was installed is much safer than one without.

### Is the B8 A4 expensive to maintain?

Yes, plan for it. Even a good one needs premium parts and European-specialist labor, and the known jobs add up: oil-consumption repair, tensioner, carbon cleaning, water pump, eventually the high-pressure fuel pump. A B8.5 that's already had the big work done, serviced at a trusted independent shop, is the way to enjoy the car without the worst bills.

### Quattro or front-wheel drive?

Prefer quattro with the conventional automatic. The front-wheel-drive cars use the Multitronic CVT, which is the most expensive transmission on this generation to repair and the one most likely to leave you with a big bill. quattro all-wheel drive is also a big part of why people want an A4 in the first place.

Cross-reference

## Every Audi A4 generation

The full case file run, beyond the generation before and after this one.

- [Audi A4 2005–2008 5/10](https://carcasefile.com/vehicles/audi-a4-2005-2008/)
- [Audi A4 2017–2024 7/10](https://carcasefile.com/vehicles/audi-a4-2017-2024/)

## Cross-shopped rivals

Files on what buyers weigh against the Audi A4 of this era.

- [BMW 5 Series 2011–2017 4/10](https://carcasefile.com/vehicles/bmw-5-series-2011-2017/)
- [BMW 3 Series 2012–2018 5/10](https://carcasefile.com/vehicles/bmw-3-series-2012-2018/)

Spot an error in this case file?

Wrong cost, a fault we missed, or a part number that doesn't fit. Tell us and we'll fix it. See our [verification methodology](https://carcasefile.com/methodology/) and [corrections policy](https://carcasefile.com/disclaimer/).

Reviewed CarCaseFile editorial · filed 2026-06-27 · updated 2026-08-30

Cost figures are independent-shop estimates and vary by region and condition. Always confirm a diagnosis before authorizing repairs.