VW Group 1.8 and 2.0 TSI/TFSI (EA888, generations 1 and 2): common problems by mileage
The EA888 is the VW Group's four-cylinder turbo petrol engine with a timing chain. The first and second generations (about 2007–2013) went into Audis, VWs, Skodas and Seats from the A4 to the Golf GTI. They are strong engines with two well-known faults: oil consumption through the piston rings on many 2008–2011 engines, and a chain tensioner that could let the chain jump on earlier engines.
Updated · written by ipacen from documented workshop experience
- Engine codes
- 1.8: BYT, BZB, CDAA, CDAB, CDHA, CDHB; 2.0: CAWB, CBFA, CCTA, CCZA, CCZB, CAEA, CAEB, CDNB, CDNC
- Displacement
- 1,798 cc (1.8) and 1,984 cc (2.0)
- Power
- 88–155 kW (120–211 hp)
- Built
- 2007–2013
- Timing drive
- Chain
- Fuel system
- Direct injection, turbo
Problems at a glance
| Problem | Typical mileage |
|---|---|
| High oil consumption (piston rings) high severity | 60,000–160,000 km 35,000–100,000 miles |
| Timing chain tensioner failure and chain jump high severity | 60,000–180,000 km 35,000–110,000 miles |
| Crankcase breather (PCV) valve failure medium severity | 60,000–160,000 km 35,000–100,000 miles |
| Carbon build-up on the intake valves medium severity | 80,000–160,000 km 50,000–100,000 miles |
High oil consumption (piston rings)
Symptoms
- Oil consumption of 0.5 litre per 1,000 km or more
- Low oil level warnings between services
- Fouled spark plugs, misfire
- Carbon on pistons and valves
Fault codes
Why it happens
Many 2008–2011 engines have low-tension oil control rings whose drain holes are too small and clog with carbon, so oil stays on the cylinder walls and burns. A failed crankcase breather (PCV) valve adds to it.
How to confirm it
- Oil consumption test: fill to max, mark, re-check after 1,000 km.
- Rule out the PCV valve and external leaks first.
- Compression and leak-down test, and borescope the pistons for carbon.
The fix
Revised pistons and rings (in some cases con-rods too), which is an engine-out or engine-in-car rebuild. A decoke treatment helps only temporarily.
Timing chain tensioner failure and chain jump
Symptoms
- Rattle of a few seconds on a cold start
- Crankshaft/camshaft correlation fault
- Engine cuts out and will not restart if the chain jumps
- Bent valves after a jump
Fault codes
Why it happens
On earlier engines the tensioner can lose its ratchet and let the chain go slack, especially after a car has stood. The chain then jumps teeth and the valves hit the pistons. A revised tensioner was introduced.
How to confirm it
- Remove the plug on the timing cover to see the tensioner and check its version and extension.
- Listen on a cold start.
- Check camshaft position deviation in live data.
The fix
Fit the latest tensioner (with chain and guides if worn) before it fails. After a jump: compression or leak-down test, and usually a cylinder head repair.
Crankcase breather (PCV) valve failure
Symptoms
- Whistle or howl from the engine at idle
- Lean fault code with high positive fuel trims at idle
- Rough idle; oil seals pushed out by crankcase pressure
- Oil filler cap hard to lift with the engine running
Fault codes
Why it happens
The diaphragm in the PCV valve (in the oil separator on the side of the block) splits. Unmetered air enters through the crankcase and pressure control is lost.
How to confirm it
- Fuel trims at idle and at 2,500 rpm: lean at idle, closer to normal higher up.
- Smoke-test the intake and crankcase.
- Feel the vacuum at the oil filler with the engine idling and compare with a known good engine.
The fix
Replace the PCV valve or the complete oil separator with the latest version.
Carbon build-up on the intake valves
Symptoms
- Misfire when cold, rough idle
- Loss of power and economy
- Misfire codes on several cylinders
Fault codes
Why it happens
With direct injection no fuel washes over the intake valves, so oil vapour from the breather bakes on them. Oil consumption and a failing PCV valve speed it up.
How to confirm it
- Borescope the intake valves through the ports (intake manifold off) or a suitable access point.
- Compression test to rule out mechanical faults.
- Check the PCV valve.
The fix
Walnut-shell blasting of the intake ports with the manifold off. Fix the breather and oil consumption first.
Known-good values
Add readings from a healthy 1.8/2.0 TFSI EA888Readings from 1.8/2.0 TFSI EA888 engines that run correctly, reported by mechanics on ipacen. Each member counts once; the median shows from 3 members up, with the middle half of the readings as the range. No readings yet: be the first.
See the values you can report and the typical guide
| Value | Typical guide | Measured by members |
|---|---|---|
| Engine | ||
| Idle speed, warm (rpm) | Usually about 650–900 rpm | — |
| Coolant temperature, fully warm (°C) | About 85–105 °C | — |
| Oil pressure, hot idle (bar) | Typically above about 1.0 bar | — |
| Oil pressure, hot, 2,000 rpm (bar) | Typically above about 2.5 bar | — |
| Compression, typical cylinder (bar) | Petrol about 11–15 bar, diesel about 25–35 bar | — |
| Air and fuel | ||
| Air mass, warm idle (g/s) | Petrol: roughly 1 g/s per litre of engine size | — |
| Total fuel trim, warm idle (%) | Within about ±10 % | — |
| Total fuel trim, 2,500 rpm (%) | Within about ±10 % | — |
| Manifold pressure, warm idle (kPa) | Naturally aspirated: about 25–40 kPa | — |
| Boost at full load (absolute) (mbar) | Turbo engines: compare with specified boost | — |
| Fuel system | ||
| Injector pulse width, warm idle (ms) | Port injection: often about 2–4 ms | — |
| Fuel pressure, low-pressure side, idle (bar) | Check the specification for the system | — |
| Rail pressure, warm idle (bar) | Diesel common rail: typically about 250–400 bar | — |
| Electrical | ||
| Charging voltage, 2,000 rpm (V) | About 13.8–14.7 V | — |
| Lowest battery voltage while cranking (V) | Above about 9.6 V | — |
| Crankshaft sensor resistance (inductive type) (Ω) | About 200–2,000 Ω | — |
| Injector resistance (petrol port injection) (Ω) | High-impedance: about 11–18 Ω | — |
The guide is ipacen's typical range, not manufacturer data. Member values are what colleagues measured on healthy cars; always compare with the specification for the engine.
Which cars have the 1.8/2.0 TFSI EA888
- Audi: A3 (8P), A4 and A5 (B8), A6 (C7), Q3, Q5 (8R), TT (8J)
- Volkswagen: Golf VI GTI, Passat B6 and B7, Passat CC, Tiguan, Scirocco, Jetta, Eos, Sharan, Beetle
- Skoda: Octavia II 1.8 TSI, Superb II, Yeti 1.8 TSI
- Seat: Leon II 1.8 TSI, Altea, Exeo
Cases with this engine
Share yours1.8/2.0 TFSI EA888: questions and answers
What are the most common problems with the 1.8/2.0 TFSI EA888?
The most reported are high oil consumption (piston rings); timing chain tensioner failure and chain jump; crankcase breather (PCV) valve failure; carbon build-up on the intake valves. Each one is described below with its symptoms, fault codes, how to confirm it and the usual fix.
At what mileage does the 1.8/2.0 TFSI EA888 have high oil consumption (piston rings)?
Typically between 60,000–160,000 km (35,000–100,000 miles), depending on use and maintenance. Many 2008–2011 engines have low-tension oil control rings whose drain holes are too small and clog with carbon, so oil stays on the cylinder walls and burns. A failed crankcase breather (PCV) valve adds to it.
At what mileage does the 1.8/2.0 TFSI EA888 have timing chain tensioner failure and chain jump?
Typically between 60,000–180,000 km (35,000–110,000 miles), depending on use and maintenance. On earlier engines the tensioner can lose its ratchet and let the chain go slack, especially after a car has stood. The chain then jumps teeth and the valves hit the pistons. A revised tensioner was introduced.
At what mileage does the 1.8/2.0 TFSI EA888 have crankcase breather (PCV) valve failure?
Typically between 60,000–160,000 km (35,000–100,000 miles), depending on use and maintenance. The diaphragm in the PCV valve (in the oil separator on the side of the block) splits. Unmetered air enters through the crankcase and pressure control is lost.
At what mileage does the 1.8/2.0 TFSI EA888 have carbon build-up on the intake valves?
Typically between 80,000–160,000 km (50,000–100,000 miles), depending on use and maintenance. With direct injection no fuel washes over the intake valves, so oil vapour from the breather bakes on them. Oil consumption and a failing PCV valve speed it up.
Which cars have the 1.8/2.0 TFSI EA888 engine?
Audi: A3 (8P), A4 and A5 (B8), A6 (C7), Q3, Q5 (8R), TT (8J). Volkswagen: Golf VI GTI, Passat B6 and B7, Passat CC, Tiguan, Scirocco, Jetta, Eos, Sharan, Beetle. Skoda: Octavia II 1.8 TSI, Superb II, Yeti 1.8 TSI. Seat: Leon II 1.8 TSI, Altea, Exeo.
Mileage windows are typical workshop experience, not manufacturer data. Engines vary by version, use and maintenance; always follow the service information for the vehicle.