Skoda Superb
Strongest 1.9 TDI variant at 96 kW/130 hp with unit injector technology. Considered more robust than the weaker ATD but subject to the same PD-specific weaknesses. The turbocharger (GT1749VA) is designed for higher loads and holds up well with correct oil maintenance.
Too little diesel for the Superb
96 kW in the large 3U: the engine is always near its limit. Acceptable for long-distance, zero fun factor.
Engine Weaknesses 3
The variable-geometry turbocharger (GT1749VA) on the ASZ tends toward shaft play and oil blow-by at higher mileages. The defect is often confused with an injection pump problem.
Symptoms: Whistling or rattling from the turbocharger area, oil trail in the exhaust pipe, power loss with smoke
The four unit injectors are high-pressure components that wear prematurely when contaminated or incorrect engine oil is used. Complete failure of all four units is possible.
Symptoms: Heavy juddering and rough running, white smoke, fuel smell, engine running as though on 3 cylinders
Identical issue to the ATD: wear on camshaft and bucket tappets due to high valvetrain stress from the unit injector technology. VAG bulletin TPI 2009814/12 confirms the problem.
Symptoms: Ticking and clattering from the valve cover area, worse noise on cold start, declining engine power
Vehicle Weaknesses 8
Suspension springs and shock absorbers wear early. TÜV reports for both Superb generations list springs and dampers as the most frequent faults. Axle suspension components are considered the weakest element.
Corrosion forms at the tailgate damper mounting points, door edges and beneath rubber seals. Older vehicles without thorough factory underbody protection particularly affected.
The cable in the door wiring harness breaks through repeated opening and closing of the door. A typical symptom is non-functioning central locking or the Twindoor latch.
The steering rack wears from approximately 120,000 km, recognisable by increasing play and knocking noises. The track rod ends are also frequently affected.
The calliper guide pins corrode and the callipers seize, particularly on the rear axle. This leads to one-sided brake wear and overheating.
The coolant expansion tank becomes brittle and cracks at the connection stub. This leads to a slow coolant loss that is often only noticed late.
The dashboard creaks and squeaks when driving over bumps. Škoda carried out a field action with modified retaining clips — the repair requires complete dashboard removal.
Unpleasant odours from the ventilation outlets due to dirty pollen filters and mould growth on the evaporator. Typical problem on older vehicles with infrequently serviced air conditioning.
