VW Phaeton
Audi V8 with timing belt instead of chain — replacement every 120,000 km is mandatory and costs around 1,800 EUR. Seized swirl flap and ignition coil issues are typical used-car headaches. Oil leaks increase with age.
Facelift V8 Legend
The facelifted Phaeton V8 is even more refined — unrivalled touring comfort, cultured V8 drive, excellent quality.
Engine Weaknesses 5
The BGH is the only petrol Phaeton with a timing belt. Replacement is due at 120,000 km and costs around €1,800. An overdue belt risks catastrophic engine damage.
Symptoms: No warning signs — if it snaps, the engine stops instantly
The GUV automatic gearbox is prone to shift errors and harsh shifting. The plastic Tiptronic selector gate breaks. The transmission control unit occasionally needs software updates.
Symptoms: Hard jolting when shifting, amber gearbox warning light, unable to select a gear
The plastic linkage rods of the swirl flap actuator mechanism become brittle and snap. The flap shaft can no longer turn. A new intake manifold costs around €1,900 plus VAT from VW.
Symptoms: Check engine light, power drop at mid-range rpm, swirl flap fault code
The 4.2 V8 is regularly known for defective ignition coils. With 8 cylinders, replacing all coils as a complete set makes sense. Total cost for all 8 stays manageable.
Symptoms: Rough running, misfires, check engine light, loss of power on individual cylinders
The 4.2 V8 develops various oil leaks with age — valve cover gaskets, crankshaft seals, and front axle seals are typical culprits.
Symptoms: Oil smell after driving, oil spots under the vehicle, dropping oil level