VW Group 1.2 and 1.4 TSI (EA111, timing chain): common problems by mileage
The first-generation TSI engines (EA111) are small turbocharged direct-injection petrol engines with a timing chain, built from 2006 until the belt-driven EA211 replaced them around 2012–2015. The 1.4 TSI came with a turbo (122–125 hp) or with a turbo plus supercharger ("twincharger", 140–180 hp); the 1.2 TSI is the 86–105 hp version. The weak spots are the chain tensioner and, on the high-output 1.4, the pistons.
Updated · written by ipacen from documented workshop experience
- Engine codes
- 1.2: CBZA, CBZB; 1.4 turbo: CAXA, CAXC, CMSA; 1.4 twincharger: BMY, BLG, BWK, CAVD, CAVE, CTHD
- Displacement
- 1,197 cc (1.2) and 1,390 cc (1.4)
- Power
- 63–132 kW (86–180 hp)
- Built
- 2006–2015
- Timing drive
- Chain
- Fuel system
- Direct injection with turbo (the 1.4 twincharger adds a supercharger)
Problems at a glance
| Problem | Typical mileage |
|---|---|
| Timing chain stretch and tensioner high severity | 60,000–160,000 km 35,000–100,000 miles |
| Cracked pistons on the high-output 1.4 TSI high severity | 80,000–180,000 km 50,000–110,000 miles |
| Turbo wastegate rattle (1.4 TSI 122–125 hp) low severity | 80,000–180,000 km 50,000–110,000 miles |
Timing chain stretch and tensioner
Symptoms
- Rattle for a few seconds on a cold start, worse after the car has stood
- Rattle that becomes constant, engine warning light
- Crankshaft/camshaft correlation fault
- If the chain jumps: no start and bent valves
Fault codes
Why it happens
The hydraulic tensioner has no mechanical lock, so the chain is slack until oil pressure builds. Every slack start wears the chain and guides; VW revised the tensioner and chain several times. On the 1.2 TSI, cars parked in gear on steep slopes are also reported to have jumped teeth.
How to confirm it
- Listen on a stone-cold start, after the car has stood overnight.
- Read the camshaft adjustment deviation in live data and check for correlation faults.
- If in doubt, remove the timing cover and check chain wear, guides and tensioner extension.
The fix
Replace the chain, tensioner (latest version), guides and sprockets as a kit. If the chain jumped, check the valves with a compression or leak-down test first.
Prevention
Act on the first cold-start rattle, keep oil changes short, and use the handbrake firmly on steep slopes.
Cracked pistons on the high-output 1.4 TSI
Symptoms
- Misfire on one cylinder that does not move with the coil
- Low compression on that cylinder
- Oil consumption and blue smoke
- Crankcase pressure pushing at the oil filler cap
Fault codes
Why it happens
High boost at low rpm can cause pre-ignition and detonation, which cracks the piston ring lands. Low-octane fuel and full throttle at very low rpm make it more likely; the twincharger versions are the most affected.
How to confirm it
- Swap the coil and plug to another cylinder to rule out ignition.
- Compression test, then a leak-down test on the low cylinder: air in the crankcase means rings or piston.
- Borescope the piston crown.
The fix
New pistons and rings (engine out or rebuilt), often an exchange engine. Check the bores for scoring.
Prevention
At least the fuel grade in the handbook (98 RON is safer on the high-output versions) and no full throttle below about 2,000 rpm.
Turbo wastegate rattle (1.4 TSI 122–125 hp)
Symptoms
- Metallic rattle from the turbo at idle or when lifting off the throttle
- Worse when warm
- Later: underboost and loss of power
Fault codes
Why it happens
The wastegate flap bushing and the actuator linkage wear, so the flap rattles in its seat.
How to confirm it
- Listen at the turbo with a stethoscope and gently load the actuator rod by hand: the rattle stops if it is the wastegate.
- Check the rod and flap for play with the engine off and cold.
- Log specified against actual boost.
The fix
A linkage repair kit if the play is small; otherwise a new or reconditioned turbo.
Known-good values
Add readings from a healthy 1.2/1.4 TSI EA111Readings from 1.2/1.4 TSI EA111 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 1.2/1.4 TSI EA111
- Volkswagen: Golf V and VI, Polo V, Jetta, Touran, Tiguan, Passat B6 and B7, Scirocco, Caddy, Beetle, Eos
- Audi: A1, A3 (8P)
- Skoda: Fabia II, Octavia II, Roomster, Yeti, Superb II, Rapid
- Seat: Ibiza, Leon II, Altea, Toledo
Cases with this engine
Share yours1.2/1.4 TSI EA111: questions and answers
What are the most common problems with the 1.2/1.4 TSI EA111?
The most reported are timing chain stretch and tensioner; cracked pistons on the high-output 1.4 TSI; turbo wastegate rattle (1.4 TSI 122–125 hp). Each one is described below with its symptoms, fault codes, how to confirm it and the usual fix.
At what mileage does the 1.2/1.4 TSI EA111 have timing chain stretch and tensioner?
Typically between 60,000–160,000 km (35,000–100,000 miles), depending on use and maintenance. The hydraulic tensioner has no mechanical lock, so the chain is slack until oil pressure builds. Every slack start wears the chain and guides; VW revised the tensioner and chain several times. On the 1.2 TSI, cars parked in gear on steep slopes are also reported to have jumped teeth.
At what mileage does the 1.2/1.4 TSI EA111 have cracked pistons on the high-output 1.4 TSI?
Typically between 80,000–180,000 km (50,000–110,000 miles), depending on use and maintenance. High boost at low rpm can cause pre-ignition and detonation, which cracks the piston ring lands. Low-octane fuel and full throttle at very low rpm make it more likely; the twincharger versions are the most affected.
At what mileage does the 1.2/1.4 TSI EA111 have turbo wastegate rattle (1.4 TSI 122–125 hp)?
Typically between 80,000–180,000 km (50,000–110,000 miles), depending on use and maintenance. The wastegate flap bushing and the actuator linkage wear, so the flap rattles in its seat.
Which cars have the 1.2/1.4 TSI EA111 engine?
Volkswagen: Golf V and VI, Polo V, Jetta, Touran, Tiguan, Passat B6 and B7, Scirocco, Caddy, Beetle, Eos. Audi: A1, A3 (8P). Skoda: Fabia II, Octavia II, Roomster, Yeti, Superb II, Rapid. Seat: Ibiza, Leon II, Altea, Toledo.
Mileage windows are typical workshop experience, not manufacturer data. Engines vary by version, use and maintenance; always follow the service information for the vehicle.