Renault · 2009–2021
Common Renault Clio problems, and how to check them
These are the 3 faults owners and garages report most often on the Renault Clio, 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
Renault Clio: Coolant leak from the plastic thermostat housing
What goes wrong
The plastic thermostat housing cracks or its seal fails.
How to check it yourself
Look for coolant puddles or residue around the thermostat housing with the engine cold, and pressure-test.
The usual fix
Replace the thermostat housing and seal; refill and bleed the system.
Signs: Coolant loss, Engine overheating
Fault codes: P0128
Problem 2
Renault Clio: EGR valve or DPF clogging on the 1.5 dCi
What goes wrong
Soot clogs the EGR valve and the particulate filter, especially with short trips.
How to check it yourself
Read the codes, DPF soot load, and EGR position values.
The usual fix
Clean or replace the EGR valve; regenerate or clean the DPF.
Signs: Loss of power, Check engine light, Rough idle
Fault codes: P0401, P0402, P2002, P2463
Problem 3
Renault Clio: Ignition coil misfire or turbo wear on the 0.9 TCe
What goes wrong
Ignition coils fail and cause misfires; the turbo wears on cars with neglected oil changes.
How to check it yourself
Swap the coil of the misfiring cylinder; for power loss, compare requested and actual boost and check for oil in the intake.
The usual fix
Replace the coil (and spark plugs if old); replace a worn turbo along with an oil change.
Signs: Misfire under load, Loss of power, Turbo whistle, Check engine light
Fault codes: P0300, P0301, P0302, P0303, P0299
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