EGR valve and cooler coking
Signs: Power loss, limp mode, EGR fault codes (P0401, P0403, P2413)
Fix: Check actual EGR flow in live data, clean or replace the valve; the cooler if it is blocked
Diesel · 2009–2017
Enter your VIN and mileage and get a plan built for your exact engine and gearbox.
All about the Volkswagen Polo 5 (6R/6C)All about the 1.4 / 1.6 / 2.0 TDI (EA288) engine
The 1.4 / 1.6 / 2.0 TDI (EA288) engine was fitted to the Volkswagen Polo 5 (6R/6C) (2009–2017). In the EU that is 15.5 % of all new cars of this generation.
The most expensive known risk is high-pressure fuel pump (Bosch CP4): it usually appears at 150,000–300,000 km and costs €1,200–4,000 to fix.
✓ The faults of this engine were checked against sources (10/2026). Each item has at least two independent sources or an official recall or parts-maker technical note.
Signs: Power loss, limp mode, EGR fault codes (P0401, P0403, P2413)
Fix: Check actual EGR flow in live data, clean or replace the valve; the cooler if it is blocked
Signs: Coolant loss with no visible leak, white smoke after a cold start
Fix: Pressure-test the cooling system and replace the EGR cooler before the cylinder head is damaged
Signs: Coolant loss with no visible leak, oily emulsion on the block at cylinder 4 near the bulkhead
Fix: Pressurise the cooling system and inspect the cooler with an endoscope through the charge-air temperature sensor opening; replace the intake manifold with cooler
Signs: Overheating (shroud stuck closed) or slow warm-up and weak heating (stuck open), coolant loss, pink crust near the pump
Fix: Replace the pump, ideally together with the timing belt
Signs: Granules in the coolant, poor cabin heating (clogged heater core)
Fix: Replace the expansion tank and flush the cooling system and heater core
Signs: DPF light, regeneration every few days, rising oil level (fuel in the oil)
Fix: Longer motorway drives; check soot and ash load and the pressure sensor; forced regeneration, cleaning or replacement
Signs: Oil pressure warning, noise from the lower part of the engine
Fix: Stop the engine at once if the oil pressure light comes on; at high mileage replace the oil pump belt preventively
Signs: Squeal from the timing belt area; a slack belt after a belt change
Fix: Fit the revised tensioner; at a belt change loosen the camshaft and pump sprockets so the tension is even (INA instruction)
Signs: Harder starting, louder clatter when cold, rough idle, high return flow on the test
Fix: Return-flow (leak-off) test; recondition or replace the injectors
Signs: Hard starting, power loss, rail pressure codes; metal particles can reach the injectors
Fix: Replace the pump; if there is metal debris, also injectors, rail and lines, and flush the tank
Signs: Limp mode, boost pressure codes, whistling, oil in the intake
Fix: Clean the variable vanes or repair the actuator; replace or recondition the turbo
Signs: Oil on top of the cylinder head, oil reaching the timing belt
Fix: Reseal the camshaft housing, usually together with the timing belt change
Signs: Steering suddenly goes heavy, steering warning light, faults such as 00566/01288 stored.
Fix: Check fuses, power supply and fluid leaks first; then rebuild or replace the pump unit with its control module.
Signs: Fan works only on top speed or not at all, or runs noisily / unevenly.
Fix: Measure blower motor current; replace resistor (Climatronic: fan control module) and the motor if it draws too much.
Signs: Oil-wet damper body, bouncy ride, failed inspection.
Fix: Replace dampers in axle pairs, with top mounts / bump stops as needed.
Signs: Handbrake holds poorly or uneven on the roller tester, rear brakes drag or wear unevenly.
Fix: Free or replace rear caliper (or drum) mechanism and handbrake cables, then adjust.
Signs: Bubbling or rust holes on the sills, especially behind mud flaps; rust on load-bearing parts at inspection.
Fix: Clean drain channels, cut out and weld in repair sections, cavity-wax; avoid long mud flaps.
Signs: Boot won't open from the handle or pops up over bumps, number-plate light or rear wiper dead.
Fix: Repair broken wires in the hinge-side loom (not at the bend) or replace the loom; check lock microswitch.
Signs: Airbag warning light; rare risk of unwanted deployment or malfunction.
Fix: Check VIN for open recall; dealer replaces the airbag control unit free.
Signs: No symptoms; inflator could rupture and throw metal fragments on deployment.
Fix: Check VIN for open recall; dealer replaces driver airbag free.
Signs: Starter keeps running or burning smell after start.
Fix: Check VIN for open recall; dealer replaces the starter free.
Signs: Slipping, high bite point
Fix: Replace clutch kit
Signs: Jerky or hard shifts, flashing gear display, odd or even gears drop out, then limp mode or the car will not move (codes such as P17BF)
Fix: Have the hydraulic pressure checked by a DSG specialist; repair the housing / accumulator with a revised kit or fit a reconditioned mechatronic unit, then run the adaptations
Signs: Gearbox warning and sudden loss of drive (clutches open, car freewheels), usually just after starting; gearbox fuse found blown
Fix: Check whether the recall / service action was done (control unit and mechatronic oil change); otherwise repair or replace the control unit and use the current oil
Signs: Judder or shudder when pulling away or parking, slipping, burning smell, warning to stop when the clutch is hot
Fix: Read clutch wear and adaptation values with a dealer-level tester; reset adaptations first, replace the double clutch (with release levers / bearings) if worn
Typical routine maintenance cost for 100,000 km: €2,400–5,750. Sum of the services and wear parts in the plan above (about 15,000 km a year, independent workshop), without faults.
Intervals and typical prices for the Volkswagen Polo 5 (6R/6C) with the 1.4 / 1.6 / 2.0 TDI (EA288) engine. The app gives the exact plan for your mileage.
| Item | Interval | Typical price |
|---|---|---|
| DPF health check (soot / ash load)Emissions | every 20,000 km | €0–60 |
| 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 |
| Fuel filterFuel | every 30,000 km or every 24 months | €40–110 |
| Glow plugsEngine | every 100,000 km | €120–300 |
| Timing belt kit + water pumpEngine | every 210,000 km or every 120 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 |
Recalls the manufacturer published in the United Kingdom for this model (10). 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.
The faults with the highest risk: intercooler in the intake manifold cracks (coolant leak) (100,000–200,000 km, €600–1,400); EGR cooler internal leak (100,000–180,000 km, €450–1,300); switchable coolant pump: shroud sticks or leaks (80,000–150,000 km, €300–1,200); high-pressure fuel pump (Bosch CP4) (150,000–300,000 km, €1,200–4,000).
Belt · 210,000 km / every 120 mo.
0W-30 / 5W-30 · VW 507.00 · ~4.3–4.6 L · every 15,000 km.
1.2 / 1.4 TSI (EA211)1.2 / 1.4 TSI / TFSI (EA111)1.2 / 1.6 TDI CR (EA189)1.2 HTP 3-cyl (6v / 12v)1.0 MPI (EA211: CHYA / CWVA)
Volkswagen Golf VII 2012–2020Škoda Octavia III 2013–2020Audi A3 (8V) 2012–2020Volkswagen Passat B8 2014–2023Audi A4 (B9) 2015–2024Škoda Superb III 2015–2023Škoda Octavia IV 2020–Audi A1 (8X) 2010–2018Volkswagen Tiguan II 2016–2024Audi A6 (C7) 2011–2018SEAT León III 2012–2020Volkswagen Caddy III 2004–2020
Main sources for the faults of this engine:
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. How we check the data →
Updated 29/10/2026