Question 1

What does P0300 mean on a Renault Clio 1.2 TCe?

Accepted Answer

P0300 means the ECU has detected random or multiple cylinder misfires. On the Renault Clio IV 1.2 TCe (H5FT engine), this is a well-documented fault linked to piston ring wear, bore scoring, and low compression rather than a simple ignition or fuel issue.

Question 2

How much does a Renault Clio IV 1.2 TCe engine rebuild cost in Potters Bar?

Accepted Answer

Costs vary depending on the extent of wear found during strip-down. MnF Motors provides a transparent quote after compression testing and diagnosis. Typical engine rebuild work starts from around £1,200–£2,500 depending on parts required. Call 020 8803 1231 for a specific quote.

Question 3

Is it worth rebuilding the Renault Clio 1.2 TCe engine or should I replace the car?

Accepted Answer

In many cases, a rebuild or reconditioned engine replacement is far more cost-effective than replacing the vehicle. The Clio IV is otherwise a reliable car. MnF Motors will give you an honest assessment of whether rebuild, replacement engine, or another route makes the most financial sense for your specific vehicle.

Question 4

How long does a Renault 1.2 TCe engine rebuild take?

Accepted Answer

A full engine rebuild on the H5FT 1.2 TCe typically takes 5–10 working days once parts are sourced. Fitting a reconditioned or replacement engine can be quicker. MnF Motors will give you a realistic timeline when you book in.

Question 5

Can I drive my Renault Clio with a P0300 code and low compression?

Accepted Answer

We strongly advise against it. Continued driving with low compression and active misfires accelerates internal engine damage, increases oil consumption risk, and can lead to catalytic converter damage — turning a repairable engine into a much more expensive problem. Have it diagnosed immediately.