The Mégane II Owners' Club

Thanks Wanda, does this app show values for STFT and LTFT(short term fuel trim and long term fuel trim).

Thanks Wanda, yes I have a couple of those type. A WiFi and a Bluetooth one. The type I am referring to is the Chinese copy of Renault clip. This works fine for most functions apart from the OBD2 part which displays the data like your Bluetooth one. Can you get good readings for fuel trims? This see...

Nice one. Glad to hear about a nippy cc, rare breed I think.

I agree with grandadbobby, you need to read your codes.
I wouldn't touch the throttle body yet. You have to let the car relearn if you do anything with that.
I still say it may be coils because these cars are well known for them failing.

Cheers.

So, what conclusion led you to change the plugs?

The whole car or just the steering wheel?
Although, I have to say when I hit 40 I started juddering too
Maybe best taking it to a garage to check over. It may just be wheels imbalanced but it could be something more sinister.

Unplug the coils one by one, if it gets worse its not that one. If it stays the same you found the culprit.

Wow sounds brutal!

Will it start with your foot on the clutch and in neutral?

OK, not sure if I will get shouted at for this but here goes. I have a "Clip" and on my previous Megane and my current Koleos the OBD2 scanner function does not work. Everything else works fine and I can see error codes, record PIDS, etc. Does anyone have a similar device and if so does th...

It depends what the problem is really, for example, if you clean the throttle body it is the best way to allow the car to re-learn the new opening angles required for best fuel/air mix.
Now, in this case, it may not make any difference but you have nothing to lose

If you disconnect the battery don't forget you need your radio code

In the exhaust, approx at the end of door. Can't miss it. Check the wires first because they are a bit exposed. Easier to get a garage to do it though, they can get welded in due to the heat apparently. I would check the voltages first however, on your odb thing if possible. It should be capable of ...

Ok, this may be too obvious but did you change the petrol/diesel and the oil before driving it?
Nothing to do with roof but would cause misfires I guess.

I would swap number 1 with 3 see if the problem moves.
Apparently they die in pairs, 1+2, 3+4.

Glad to hear it's ok though.

Any updates?