The Mégane II Owners' Club

If they (or you) put a 300mm long standard half inch drive spanner or similar onto the end of the crank pulley (wheel off driver's side & arch cover off) and it won't rotate several turns clockwise (or won't move at all with hand pressure), then it's seized. No amount of starter motor juice will...

The plastic under tray is only held on by about 7 no. 10mm head bolts.

Much of the bumper is only held on from below also - certainly enough for you to bend it forward without breaking the top clips; this might allow for easier access. (Might!).

Pieces of plastic trim can rub against one another creating a buzzing sound. Take the outer piece off, lube where it mates with the other part with silicone paste (any good motor-factor) and re-install. Don't use standard grease - it eats plastic. Wipe away any excess. Worth a punt for the small out...

That looks like my old 1.9 engine. Clean everything, and try to identify where the leak is coming from. The 'bottle' immediately below the oil filler cap is prone to getting gelled up. The net result of this is that the PCV pressure blows out oil. This discovery saved me from buying and new turbo. I...

The usual culprit here is the throttle body requiring cleaning. But I've never owned a petrol Megane, so await corrections!

Well, check injection should trigger an OBD code. Keep trying...

The manuals in this forum have factory diagnostic procedures in them. Have a read.

You drive a relatively rare marque car. As far as I know, the rear axle camber/castor etc, cannot be adjusted on the 'standard' Megane. Since this is likely the problem, I'm out of ideas save for replacing something that has been pranged. You might find something in the manuals - or else, the proble...

My 5 door 'B' pillar used to make a similar noise. It was the plastic trim panels vibrating - solved with silicone paste.

I don't know whether the 225 has a 'B' pillar... (never seen one in detail).

https://www.sr-performance.co.uk/

Good knowledgeable chap. Worth a call.

continentalgt wrote:Like I said check the connector under the passenger seat first.

Sorry - I missed that in your first post.

I like to think that we can tell the difference between a turbo spooling up and something else

Let us know how you get on (both with the car and the missus!)

Check the engine ground connections. Do a voltage drop test.

Oh dear! I don't really think anything can be done about this unfortunate incident...

A lot, sadly. And, I'd be surprised if it were not the cause.

Try a scrapyard/breaker and if you do the replacement yourself, read up on air bag safety precautions as you will be removing an unexploded bomb while you perform the repair.