IsItAGoodCar
Reliability Guide

Common Problems with the
2021 Skoda Superb Mk3

We've identified 2 known issues that can affect the 2021 Skoda Superb Mk3. 1 of these are serious faults that could be expensive to repair.

2
Known Issues
1
Serious
1
Moderate
0
Minor

All Known Issues

DSG (DQ381) Sensor Failure

SeriousGearbox & Transmission

Later Mk3 models with the 7-speed wet-clutch DSG (DQ381) can suffer from faulty clutch position sensors (P1735/P1736), requiring a mechatronic rebuild.

Est. Repair Cost: £600–£1,200
Warning Signs:

Gearbox emergency mode, Loss of odd or even gears, Fault codes P1735 or P1736

What to Inspect:
  • Check for gearbox fault codes
  • Verify if mechatronic has been rebuilt or replaced
Verified by IsItAGoodCar Research Team

Water Pump / Thermostat Housing Leak

ModerateCooling System

A familiar MQB fault where the plastic housing warps and leaks coolant.

Est. Repair Cost: £400–£750
Warning Signs:

Low coolant warning, Pink residue around housing, Sweet smell after driving

What to Inspect:
  • Inspect coolant level cold
  • Look for a recent pump invoice
  • Check around the thermostat housing with a torch
Verified by IsItAGoodCar Research Team

Buying Tips for 2021 Skoda Superb Mk3

  • ✓Inspect the water pump and thermostat housing for leaks
  • ✓Verify DSG servicing and smooth hot/cold behaviour
  • ✓Test the infotainment screen for lines, ghost touches or reboots
  • ✓Look at the exterior trim and check estate boot areas for water ingress
20202022–2024
Check a 2021 Skoda Superb Mk3 by Registration