1.6 TDI engine: faults and reliability

• 1.6 TDI common rail EA189 (2009-2015)

  2009–2015 · 75–105 hp · CAYA, CAYB, CAYC, CAYD, CAYE

  With caution

  The dieselgate scandal affects the whole series: check that the update (software and air flow stabiliser) has been done and that there are no symptoms of EGR, particulate filter, turbo or water pump problems.^[1][2]

• 1.6 TDI EA288 (from 2012)

  since 2012 · 80–120 hp · DGTC, CLHB, CXXA, DDYB, CLHA, CXXB, DBKA, CRKB, DDYA, DGTE, DCXA, DCZA

  Buy

  The sources we consulted on dieselgate focus on the EA189 engines; we have found no indication that the EA288 is singled out in the same way. The main thing to watch is that the timing belt and the water pump have been changed on time.^[1][6]

Buy: No known serious faults, or they have already been corrected, in this version. With caution: Worth buying if something specific is verified: history, a replaced part or a completed campaign. Avoid: High risk of a serious fault that is hard to check for or prevent.

1. 1Medium severityVery frequentFrequency: Very frequentEmissions controlManipulated emissions software (dieselgate) and air flow stabiliserThe 1.6 TDI EA189 engines (2009-2015, 75-105 hp) carried software that reduced exhaust gas recirculation (EGR) outside homologation tests. Unlike the 2.0 TDI, Volkswagen corrects this engine with the software update plus the fitting of an air flow stabiliser.Repair: €0
2. 2High severityOccasionalFrequency: OccasionalTimingTiming belt and water pumpThe 1.6 TDI drives its timing with a toothed belt. It is common for the water pump to be changed together with the kit: if the pump seizes first, it can drag the belt with it, with a risk of breakage and serious cylinder head damage.Repair (garage): €400–€1,500
3. 3High severityOccasionalFrequency: OccasionalTurboVariable-geometry turbo seized or with playThe variable-geometry turbo on the 1.6 TDI EA189 can seize because of carbon deposits or wear on the shaft. The engine loses power, whistles or emits bluish smoke, and replacing the turbo costs around €1,000 if there is no additional damage.Repair (garage): €1,000
4. 4Medium severityCommonFrequency: CommonEmissions controlEGR valve clogged with carbon depositsThe EGR valve accumulates carbon deposits, especially on short urban trips, until it seizes and no longer seals or opens precisely. The engine loses power and jerks; cleaning the valve costs considerably less than replacing it.Repair (garage): €100–€1,000
5. 5Medium severityCommonFrequency: CommonEmissions controlClogged particulate filter (DPF)In urban use and on short trips, the particulate filter does not complete regeneration and becomes saturated with soot. The DPF warning light comes on and, if ignored, the car may enter limp mode with a loss of power.Repair (garage): €200–€3,000

Severity colours: low, medium, high, critical. How we rate them

Manufacturer

Grupo Volkswagen

Family

EA189 / EA288

Fuel

Diesel

Displacement

1,598 cm³

Cylinders

4

Fuel system

Turbo

Injection

Common rail

Timing

Timing belt (dry)

Power

75–120 hp

Peak torque

250 Nm

Production

since 2009

Makes

Volkswagen, Seat, Škoda and Audi

Technical data^[3][4][5]

1. 2009–2015

   1.6 TDI common rail EA189 (2009-2015)

   First 1.6 TDI with common-rail injection, with a variable-geometry turbo, toothed timing belt and Euro 5 standard. This is the series affected by the dieselgate emissions software.^[3]

2. since 2012

   1.6 TDI EA288 (from 2012)

   New modular generation: it keeps the displacement but lowers the compression ratio, raises injection pressure to 2,000 bar with eight-hole piezo injectors and adds a water-cooled EGR.^[4]