Volkswagen · 2011–2023
Common Volkswagen Up! problems, and how to check them
These are the 3 faults owners and garages report most often on the Volkswagen Up!, from the most common down. For each one: what goes wrong, how to check it yourself, and the usual fix, so you know what you’re dealing with before you buy parts.
Fact-checked by a licensed car technician · last reviewed 27 September 2026
Problem 1
Volkswagen Up!: Air conditioning blows warm
What goes wrong
Refrigerant leaks from connections or a damaged condenser at the front of the car.
How to check it yourself
Check whether the AC compressor clutch engages, and have the system pressure-tested with UV dye to find the leak.
The usual fix
Repair the leaking connection or replace the condenser, then evacuate and recharge the system.
Signs: Ac not cold
Problem 2
Volkswagen Up!: Hard starting or rough running in the cold
What goes wrong
Worn spark plugs and a failing ignition coil on the three-cylinder engine, sometimes combined with carbon on the intake valves.
How to check it yourself
Read which cylinder misfires, inspect the spark plugs, and swap coils between cylinders to see whether the misfire follows.
The usual fix
Replace the spark plugs (they’re often overdue) and any faulty coil. Persistent rough idle after that points to carbon build-up that needs cleaning.
Signs: Hard starting, Rough idle, Misfire under load
Fault codes: P0300, P0301, P0302, P0303
Problem 3
Volkswagen Up!: Water in the boot through the rear wiper grommet
What goes wrong
The rubber grommet around the rear wiper spindle lets water through into the boot.
How to check it yourself
Look for water in the spare-wheel well and run water over the tailgate glass while someone watches inside.
The usual fix
Reseal or replace the grommet, then dry the boot well.
Signs: Water leak into cabin
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer