Door lock / central locking
usually 80,000–200,000 km · Wear part
Signs: Doors don't lock
Fix: Replace the lock unit
€80–220
Common faults, service intervals and costs
Volkswagen Polo IV (9N)
2001–2009 · Volkswagen Polo 4 (9N)
6
engines covered
25
known faults
141,467
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 Volkswagen Polo IV (9N) was built from 2001 to 2009.
For this generation we cover 6 engines and 25 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 100–150 thousand km this model most often failed on: lights, wipers and visibility (28.4 %), suspension (17.1 %), body and corrosion (13.3 %). It fails more often than an average car of the same age and mileage on: steering, body and corrosion, exhaust, emissions and leaks.
Engines
| Engine | Fuel | Timing drive | Oil |
|---|---|---|---|
| 1.2 HTP 3-cyl (6v / 12v) | Petrol | Chain | 5W-40 / 5W-30 · VW 502.00 / 504.00 · ~2.8 L · every 10,000 km |
| 1.4 / 1.6 16v MPI (EA111: BCA / BUD / CGGA) | Petrol | Belt · 90,000 km / every 60 mo | 5W-40 / 5W-30 · VW 502.00 / 504.00 · ~3.2–3.6 L · every 15,000 km |
| 1.6 16v MPI (EA111: BTS / CFNA) | Petrol | Chain | 5W-40 / 5W-30 · VW 502.00 / 504.00 · ~3.6 L · every 15,000 km |
| 1.2 / 1.4 TDI 3-cyl (PD) | Diesel | Belt · 120,000 km / every 60 mo | 5W-40 / 5W-30 · VW 505.01 / 507.00 · ~3.8 L · every 15,000 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 |
| 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 |
Faults typical of this model
Front anti-roll bar links / bushes
usually 120,000–280,000 km · Wear part
Signs: Knocking over bumps
Fix: Replace links / bushes
€60–150
Heater blower resistor
usually 80,000–200,000 km · Wear part
Signs: Fan works only on some speeds
Fix: Replace resistor
€30–90
Faults by engine
1.2 HTP 3-cyl (6v / 12v)
Timing chain stretch / tensioner
usually 60,000–140,000 km · High risk
Signs: Rattle for a few seconds on start, rough running — the chain can jump
Fix: Replace chain, tensioner and guides
€500–900
Burnt exhaust valves (12v)
usually 80,000–160,000 km · Medium risk
Signs: Misfire on one cylinder, low compression
Fix: Cylinder head repair
€600–1,200
Ignition coils
usually 120,000–280,000 km · Wear part
Signs: Misfire, flashing engine light
Fix: Replace coil
€60–180
1.4 / 1.6 16v MPI (EA111: BCA / BUD / CGGA)
Oil consumption (piston rings)
usually 120,000–220,000 km · Medium risk
Signs: Needs topping up, blue smoke on start
Fix: Monitor; rings or valve stem seals
€500–1,500
Thermostat / coolant flange leak
usually 80,000–160,000 km · Wear part
Signs: Coolant loss, slow warm-up
Fix: Replace thermostat and flange
€100–250
Throttle body / idle control
usually 100,000–200,000 km · Wear part
Signs: Unstable idle, stalling
Fix: Clean and adapt the throttle body
€60–250
1.6 16v MPI (EA111: BTS / CFNA)
Timing chain / tensioner rattle
usually 100,000–200,000 km · Medium risk
Signs: Rattle on cold start
Fix: Replace the chain kit
€500–900
Oil consumption
usually 120,000–220,000 km · Medium risk
Signs: Topping up between services
Fix: Monitor; rings or valve stem seals
€500–1,500
Thermostat housing leak
usually 80,000–160,000 km · Wear part
Signs: Coolant loss
Fix: Replace housing
€100–250
1.2 / 1.4 TDI 3-cyl (PD)
Unit injector / loom faults
usually 120,000–220,000 km · Medium risk
Signs: Misfire, hard start
Fix: Replace injector or loom
€300–800
Turbo actuator / vanes
usually 120,000–220,000 km · Medium risk
Signs: Low power, limp mode
Fix: Clean or replace the turbo
€300–900
Engine mounts (3-cyl vibration)
usually 100,000–200,000 km · Wear part
Signs: Vibration at idle
Fix: Replace mounts
€100–300
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
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
Gearboxes
Manual
Clutch wear
usually 120,000–200,000 km · Medium risk
Signs: Slipping, high bite point
Fix: Replace clutch kit
€500–900
Automatic 4-speed (01M / 01N)
01M valve body / solenoids
usually 120,000–220,000 km · Medium risk
Signs: Harsh 2–3 shift, limp mode
Fix: Fluid change; valve body repair
€300–1,200
Scheduled service
Intervals and typical prices for the 1.2 HTP 3-cyl (6v / 12v) 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 10,000 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 |
| Auxiliary (serpentine) beltEngine | every 120,000 km | €70–180 |
| Coolant replacementCooling | every 150,000 km or every 96 months | €70–150 |
| Timing chain inspection (listen on cold start)Engine | every 150,000 km | €0–120 |
| 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: 141,467 tests.
| thousand km | 0–50 | 50–100 | 100–150 | 150–200 | 200–250 | 250+ |
|---|---|---|---|---|---|---|
| Brakes | 2.3 % | 6.8 % | 12.8 % | 17.0 % | 18.9 % | 20.3 % |
| Suspension | 8.4 % | 12.6 % | 17.1 % | 20.6 % | 23.0 % | 23.6 % |
| Steering | 0.5 % | 2.2 % | 4.0 % | 6.1 % | 7.2 % | 8.2 % |
| Tyres and wheels | 4.2 % | 6.7 % | 8.3 % | 9.6 % | 10.7 % | 10.7 % |
| Lights, wipers and visibility | 11.9 % | 20.3 % | 28.4 % | 33.7 % | 37.2 % | 37.1 % |
| Body and corrosion | 3.3 % | 7.8 % | 13.3 % | 16.9 % | 18.3 % | 18.0 % |
| Exhaust, emissions and leaks | 2.2 % | 5.0 % | 9.6 % | 13.8 % | 15.3 % | 14.0 % |
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 Takata front drivers or passenger airbag replacement22/08/2025 · R/2025/357
- Airbag Takata Front airbag13/06/2023 · R/2023/178
- Airbag The driver's airbag may not correctly deploy if activated04/10/2022 · R/2022/274
- Fire risk Seat may catch fire30/04/2007 · R/2007/050
- Fuel system Bolts of the tandem fuel pump cover may break03/03/2005 · R/2004/211
- Brakes / ABS / ESP Tension cracks may occur on the vacuum pipe to the servo11/02/2005 · R/2004/201
- Gearbox Clutch operation may be affected29/06/2004 · R/2004/092
Other generations
Volkswagen Polo III (6N) 1994–2001Volkswagen Polo V (6R/6C) 2009–2017Volkswagen Polo VI (AW) 2017–
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. 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 07/10/2026