VW Touran
FSI direct injection engine with known carbon deposits on intake valves. Regular walnut blasting recommended from 100,000 km. High-pressure pump can fail.
Underpowered
The 1.6 FSI with 115 hp and direct injection was chronically underpowered in the Touran and notorious for piston damage.
Engine Weaknesses 5
The BAG 1.6 FSI suffers from premature wear of the timing chain, tensioner and camshaft adjuster. Particularly with long-life oil intervals and short-trip use. Full repair costs 800–1,800 €.
Symptoms: Rattle on cold start (disappears after a few seconds), engine warning light for camshaft sensor, rough running
From approximately 90,000 km the BAG timing chain stretches, camshaft adjusters and chain tensioner wear. Rattle after starting is an early warning; if ignored, chain jumping and expensive engine damage are at risk.
Symptoms: Brief rattle after starting, rough idle, engine warning light, occasional power loss
The 1.6 FSI uses petrol direct injection with a high-pressure pump. On failure, starting problems and irregular running result. Replacement pump costs 300–600 €.
Symptoms: Difficult cold start, irregular idle, power loss, fuel smell from leak
With old or low-quality oil, the hydraulic tappets of the BAG become blocked. The non-return valve fails, oil drains back overnight and the oil reservoir is empty on cold start. Oil change with quality oil (5W-40) often helps.
Symptoms: Loud rattling clatter after cold start for 2–5 seconds, then normal; with neglect, permanent clatter
The BAG tends towards defective lambda sensors, causing increased consumption and elevated emissions. Replacement is simple and inexpensive but regularly required.
Symptoms: Engine warning light, elevated fuel consumption, poorer response, exhaust smells of unburnt fuel
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.