Front multi-link control arms
usually 80,000–160,000 km · Medium risk
Signs: Knocking, vague steering, uneven tyre wear
Fix: Replace the arm kit (8 arms)
€300–700
Common faults, service intervals and costs
Audi A4 (B5)
1994–2001
4
engines covered
19
known faults
3,471
roadworthiness tests in the statistics
7
official recalls
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
The Audi A4 (B5) was built from 1994 to 2001.
For this generation we cover 4 engines and 19 known faults, each with the mileage range where it usually appears.
The most expensive known risk is Big-end bearing failure (BXE / BKC / BLS): it usually appears at 150,000–280,000 km and costs €1,500–3,500 to fix.
In UK roadworthiness tests in 2024, at 250+ thousand km this model most often failed on: lights, wipers and visibility (19.4 %), suspension (17.2 %), brakes (13.0 %). It fails less often than average on: steering, lights, wipers and visibility, body and corrosion.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.6 / 2.0 8v MPI (EA113) | Petrol | Belt · 90,000 km / every 60 mo | 5W-40 / 10W-40 · VW 502.00 / 501.01 · ~4.5 L · every 15,000 km |
| 1.8 T 20v (EA113) | Petrol | Belt · 90,000 km / every 60 mo | 5W-40 / 5W-30 · VW 502.00 / 504.00 · ~4.0–4.5 L · every 10,000 km |
| 1.9 TDI PD / VE (EA188) | Diesel | Belt · 120,000 km / every 60 mo | 5W-40 / 5W-30 · VW 505.01 (PD) / 505.00 · ~4.3 L · every 15,000 km |
| 2.5 TDI V6 (VE pump, 1997–2005) | Diesel | Belt · 120,000 km / every 60 mo | 5W-40 / 5W-30 · VW 505.01 / 507.00 · ~6.0 L · every 15,000 km |
Faults typical of this model
Instrument cluster / display pixels
usually 120,000–250,000 km · Wear part
Signs: Missing pixels in the display
Fix: Repair the cluster
€150–350
Faults by engine
1.6 / 2.0 8v MPI (EA113)
Ignition coil pack / leads
usually 100,000–200,000 km · Wear part
Signs: Misfire, flashing engine light
Fix: Replace coil pack and leads
€80–200
Intake / crankcase breather leaks
usually 120,000–220,000 km · Wear part
Signs: Lean codes, unstable idle
Fix: Replace gaskets / breather hoses
€60–200
Oil consumption at high mileage
usually 200,000–320,000 km · Wear part
Signs: Topping up between services
Fix: Valve stem seals / rings
€300–1,200
1.8 T 20v (EA113)
Ignition coils (2001–2003)
usually 60,000–160,000 km · Medium risk
Signs: Misfire, flashing engine light
Fix: Replace coils (updated part)
€100–300
Oil sludge → turbo failure
usually 120,000–220,000 km · High risk
Signs: Oil light, smoke, turbo whine — worse with long oil intervals
Fix: Clean the oil pickup, synthetic oil every 10,000 km, replace turbo
€600–1,800
PCV / breather hoses cracked
usually 100,000–180,000 km · Wear part
Signs: Whistle, lean codes, oil leaks
Fix: Replace the PCV hose kit
€80–250
Water pump (plastic impeller)
usually 90,000–150,000 km · Medium risk
Signs: Overheating
Fix: Use a metal-impeller pump at the belt change
€0–150
1.9 TDI PD / VE (EA188)
Big-end bearing failure (BXE / BKC / BLS)
usually 150,000–280,000 km · High risk
engine codes: BXE, BKC, BLS, BJB, BRU, BXF
Signs: Knocking from the bottom end, oil light — can destroy the engine
Fix: VW 505.01 oil every 10–15,000 km; bearing inspection
€1,500–3,500
Turbo vanes (VNT) sticking
usually 150,000–250,000 km · Medium risk
Signs: Limp mode under load, overboost / underboost codes
Fix: Clean or recondition the turbo
€300–900
Unit injector loom / O-rings (PD)
usually 150,000–250,000 km · Medium risk
Signs: Misfire, hard hot start, fuel in oil
Fix: Replace loom or injector seals
€200–700
EGR valve clogging
usually 120,000–200,000 km · Wear part
Signs: Power loss, black smoke
Fix: Clean or replace EGR
€150–400
Tandem (fuel / vacuum) pump leak
usually 150,000–250,000 km · Wear part
Signs: Diesel smell, leak at the back of the cylinder head
Fix: Reseal or replace the tandem pump
€150–400
2.5 TDI V6 (VE pump, 1997–2005)
Camshaft and roller lifter wear
usually 120,000–220,000 km · High risk
Signs: Ticking, misfire, metal in oil — very common
Fix: Replace camshafts and lifters
€1,500–3,000
Injection pump (Bosch VP44) failure
usually 150,000–250,000 km · High risk
Signs: Stalls, won't start, 'pump' codes
Fix: Repair or exchange the pump
€800–2,000
Timing belt (complex job)
usually 100,000–120,000 km · Medium risk
Signs: Two belts + tensioners; failure destroys the engine
Fix: Replace the full kit on time
€700–1,300
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
Automatic (Aisin / ZF Tiptronic)
Torque converter / valve body
usually 150,000–250,000 km · Wear part
Signs: Delayed or harsh shifts
Fix: Fluid service, repair
€300–2,500
Scheduled service
Intervals and typical prices for the 1.6 / 2.0 8v MPI (EA113) engine. Other engines differ in oil, timing drive and some filters; the app gives the exact plan.
| Item | Interval | Typical price |
|---|---|---|
| Engine oil + oil filterEngine | every 15,000 km or every 12 months | €70–150 |
| Cabin (pollen) filterClimate | every 15,000 km or every 12 months | €15–40 |
| Brake fluidBrakes | every 24 months | €50–95 |
| A/C service (regas + desiccant)Climate | every 24 months | €70–150 |
| Air filterEngine | every 30,000 km or every 24 months | €15–45 |
| Spark plugsIgnition | every 60,000 km or every 48 months | €50–160 |
| Timing belt kit + water pumpEngine | every 90,000 km or every 60 months | €450–900 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Manual gearbox oilTransmission | every 150,000 km | €60–130 |
| Front brake padsBrakes | usually at 30,000–60,000 km | €60–150 |
| Front brake discs + padsBrakes | usually at 60,000–120,000 km | €150–320 |
| Rear brake padsBrakes | usually at 50,000–90,000 km | €50–130 |
| Tyres (set of 4)Wheels | usually at 40,000–60,000 km | €320–700 |
| Wiper bladesBody | checked at service | €20–50 |
| 12V batteryElectrical | checked at service | €100–220 |
Roadworthiness tests by mileage
Share of tests in the United Kingdom (DVSA MOT, 2024) that this model failed because of each system. Bold red means more often and green less often than an average car of the same age and mileage. Sample: 3,471 tests.
| thousand km | 150–200 | 200–250 | 250+ |
|---|---|---|---|
| Brakes | 10.5 % | 12.0 % | 13.0 % |
| Suspension | 14.1 % | 15.4 % | 17.2 % |
| Steering | 4.6 % | 5.4 % | 5.0 % |
| Tyres and wheels | 4.7 % | 3.7 % | 5.6 % |
| Lights, wipers and visibility | 14.9 % | 16.5 % | 19.4 % |
| Body and corrosion | 9.1 % | 8.2 % | 10.2 % |
| Exhaust, emissions and leaks | 6.1 % | 7.5 % | 6.7 % |
Owner complaints in the US
Which systems owners reported to the US agency NHTSA and at what mileage. Complaints are not confirmed faults and some relate to recalls. Sample: 445 complaints.
Official recalls
Recalls the manufacturer published in the United Kingdom for this model (7). The same recalls usually apply across Europe. Ask an authorised dealer to check by VIN whether your car is affected and whether the work has been done.
- Airbag The deployment of the takata airbag may be delayed or insufficiently powerful due to a potential reduction in the performance of the gas generator22/09/2021 · R/2021/234
- Airbag Function of the driver airbag might be restricted due to its age22/09/2021 · R/2021/330
- Airbag Airbag may not deploy26/10/2002 · R/2002/143
- Steering Potential premature wear of steering ball joints01/11/1999 · R/1999/072
- Brakes / ABS / ESP Possible insecurity of brake pedal14/01/1999 · R/1998/106
- Airbag Unscheduled deployment of drivers air bag26/11/1997 · R/1997/075
- Seat belt Front seat belt height adjuster28/06/1997 · R/1997/049
Common questions
Does the Audi A4 (B5) have a timing chain or a timing belt?
1.6 / 2.0 8v MPI (EA113): belt · 90,000 km / every 60 mo; 1.8 T 20v (EA113): belt · 90,000 km / every 60 mo; 1.9 TDI PD / VE (EA188): belt · 120,000 km / every 60 mo; 2.5 TDI V6 (VE pump, 1997–2005): belt · 120,000 km / every 60 mo.
What are the known problems with the Audi A4 (B5)?
The faults with the highest risk: big-end bearing failure (BXE / BKC / BLS) (150,000–280,000 km, €1,500–3,500); camshaft and roller lifter wear (120,000–220,000 km, €1,500–3,000); injection pump (Bosch VP44) failure (150,000–250,000 km, €800–2,000); oil sludge → turbo failure (120,000–220,000 km, €600–1,800). The full list by engine is on this page.
What does the Audi A4 (B5) most often fail its roadworthiness test on?
In UK roadworthiness tests in 2024, at 250+ thousand km this model most often failed on: lights, wipers and visibility (19.4 %), suspension (17.2 %), brakes (13.0 %). It fails less often than average on: steering, lights, wipers and visibility, body and corrosion.
What should you check when buying a used Audi A4 (B5)?
Before you buy, ask an authorised dealer to check by VIN that the recalls have been done (7 have been published for this model). If the engine has a timing belt, ask for the invoice for its replacement: with no proof, assume it has not been done. On the test drive, watch for these signs: knocking from the bottom end, oil light — can destroy the engine; ticking, misfire, metal in oil — very common. The full checklist is in the guide to buying a used car.
Other generations
Audi A1 (8X) 2010–2018Audi A1 (GB) 2018–Audi A2 1999–2005Audi A3 (8L) 1996–2003Audi A3 (8P) 2003–2012Audi A3 (8V) 2012–2020Audi A3 (8Y) 2020–Audi A4 (B6) 2000–2004Audi A4 (B7) 2004–2008Audi A4 (B8) 2007–2015Audi A4 (B9) 2015–2024Audi A5 (8T) 2007–2016Audi A5 (F5) 2016–2024Audi A6 (C5) 1997–2004Audi A6 (C6) 2004–2011Audi A6 (C7) 2011–2018Audi A6 (C8) 2018–Audi A8 (D4) 2010–2017Audi A7 (4G) 2010–2018Audi A7 (4K) 2018–Audi A8 (D3) 2002–2010Audi A8 (D5) 2017–Audi A5 (B10) 2024–
Models with the same engines
These models share engines with this car, so they share some of its faults too.
Volkswagen Polo IV (9N) 2001–2009Volkswagen Golf IV 1997–2006Volkswagen Bora 1998–2005Škoda Octavia I 1996–2010Škoda Fabia I 1999–2007Volkswagen Passat B5 1996–2005Audi TT (8N) 1998–2006Volkswagen Polo III (6N) 1994–2001
Other Audi models
Sources and notes
Faults, intervals and prices are indicative and collected from public sources and owner experience; always rely on the service book and a qualified workshop. Test statistics: DVSA – Anonymised MOT tests and results, Open Government Licence v3.0. Dutch tests: RDW Open Data (CC0). Engine versions: EEA, monitoring of CO₂ emissions from new passenger cars (CC BY 4.0, DG CLIMA). Owner complaints: NHTSA ODI (public domain). Recalls: DVSA Vehicle Safety Branch Recalls Database, OGL v3.0. Brand and model names are trademarks of their owners and are used only to describe the vehicles.
Updated 08/10/2026