VW Touran
Stronger EA111 TSI variant with 105 hp. Same timing chain issues as the CBZA. Oil consumption and turbocharger wear typical at higher mileage.
Chain-problem engine in a van
The CBZB 1.2 TSI is notorious for timing chain wear. 105 hp in the Touran feels overwhelmed.
Engine Weaknesses 9
The timing chain on the CBZB (1.2 TSI, 105hp) stretches from manufacturing defects from as early as 30,000–40,000 km. Defective tensioners and guides increase engine damage risk. Particularly susceptible before 2011.
Symptoms: Rattling on cold start (first 5 seconds), MIL, rough idle
The CBZB turbocharger is susceptible to premature wear, especially with oil consumption or insufficient oil changes. Whistling noises and power loss are early signs.
Symptoms: Whistling noise, power loss, increased oil consumption, bluish smoke
Engines before October 2011 (CBZA/CBZB/CBZC) are inherently susceptible to timing chain stretch from defective tensioners and worn guide rails. Damage from 30,000 km possible.
Symptoms: Metallic rattling on cold start, rough idle, in extreme cases engine failure from chain skip.
The turbocharger of the first 1.2 TSI generation (EA111) is inherently prone to seizing. The problem was known internally; a workshop action (24W6) was carried out.
Symptoms: EPC warning light, sudden power loss, engine briefly recovers after restart, then fails again.
The 1.2 TSI CBZB consumes above-average oil, frequently caused by worn piston rings or the turbocharger. Check oil level between service intervals.
Symptoms: Oil consumption >0.5 L/1,000 km, bluish exhaust smoke, falling oil level
Known weak point: sporadic misfires on all cylinders, often attributable to defective ignition coils. Problem frequently occurs on the Audi A1 with CBZB and is well documented.
Symptoms: Hesitation, engine stumbling, flashing MIL, power loss under load, cold-start problems
Excessively thin oil control rings lead to increased oil consumption. Problem occurs earlier if chain problems have caused oil starvation episodes, as cylinder walls and rings wear more severely.
Symptoms: Falling oil level, bluish smoke, frequent top-ups required, oil consumption above 0.5 L/1,000 km
Direct injection without petrol washing of intake valves leads to coke deposits. Worse combustion, increased consumption and power loss in short-trip use.
Symptoms: Rough idle, power loss at mid-range revs, increased fuel consumption.
The crankcase ventilation on the 1.2 TSI tends to wear at higher mileage. Leaking diaphragms or hoses cause false air ingestion and increased oil consumption.
Symptoms: Rough idle, mixture too lean fault code, oil mist, increased oil consumption
Vehicle Weaknesses 8
The rear coil springs frequently break at the lowest coil due to corrosion. The problem occurs from around 80,000 km, but has also been documented at 38,000 km. Replace both sides simultaneously.
A faulty microswitch in the brake/rear fog light control unit simultaneously causes failures of the third brake light, the radiator fan (running continuously), and the windscreen wipers. Typical age-related defect.
The Touran 1T suffers from inadequate corrosion protection. Typical rust spots are the sills, front wings, the tailgate around the number plate light, and the rear axle brake shields.
Water enters the boot or footwell through porous seals on the tailgate and sunroof drain. Common causes: blocked drain hoses or a leaking third brake light.
The A/C compressor can fail at higher mileages. Refrigerant loss through leaking valves or a worn compressor is the common cause. Repair is costly.
Rear brake calipers can seize through rust and lack of maintenance, causing uneven pad wear and, in severe cases, overheated discs. Regular cleaning is recommended.
Electric window regulator motors wear out prematurely and seize. Track guides can crack. Typical wear from medium mileage onwards.
The headliner detaches on older vehicles due to moisture and UV ageing. Particularly in the B-pillar area and sunroof frame. Repair requires removing the entire headliner.