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post #7 of (permalink) Old 3rd January 2014 Thread Starter
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Re: MOT failure on emissions on 2002 1.5 DCI Clio

Before I take my car to the MOT garage, I drive it using the following technique:

As recommended by Renault Technical Docs:

1)Drive in 3rd Gear
2)Take it to 4,000 revs in 3rd gear, for a second, then let it come down to 2,000 revs
3) repeat step 2) 3 times.

If in doubt you can do your quick check, I reverse my car into my own garage, and simply in neutral gear, rev to 4,000 revs for a second, then bring to idle (like they do in the MOT test). and check how much smoke come out, if hardly none, then you are ok.

Mine passed every time now (-;

Note, you should only perform this once the car is hot, i.e. you have run it for at least 15 minutes.
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