Renault Captur - Knocking noise

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Wed 27 May 2020 12:58
Renault Captur - Knocking noise - Dione84
I have a Renault captur that I bought from a dealer, they have had it back so many times but cannot get to the bottom of the knocking noise it is making and that they have tried numerous things, they are saying they think it is the way we drive the car and not changing gear properly...this is the response from them after I emailed again about the noise and suggested changing the anti roll bar bushes...

When we replaced the rear suspension components the bushes came with those components so were changed.
I would have hoped the Renault Garage would have suggested your idea if it was a possible solution.
We would need to know exactly what bushes you are referring to, we can then establish if we have already changed these or not.
If we have not already undertaken the work we will consider it.
From the recording you sent in, it sounds to me like the car could be being driven in too high a gear, as it is a diesel it is important to drive within the correct rev range, otherwise the engine and injection pump will try to compensate and create and uneven ride and noise.

I will post a link to a video of the noise is anyone could please shed some light on what it could be?

youtu.be/gVDRjz8HEcM
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Wed 27 May 2020 13:24
Renault Captur - Knocking noise - Railroad.

From the video you posted it appears that the car is stationary and the noise is present, so if that's the case you can rule out anything to do with the suspension because it won't be that. The cause has to be something on the engine, such as the flywheel or exhaust, or to a lesser extent the transmission. If it's a diesel engine it will most likely have a dual mass flywheel (DMF) which may be failing. If so, and you bought the vehicle within the past 6 months then I would expect the dealer to replace it under warranty.

You have the right to reject the faulty car for a repair or a full refund if you return it within 30 days of purchase, and they are obliged to repair it if a fault develops within 6 months because it's assumed in law that the fault would've been pre-existing.

If you'd bought the car privately then you would be on your own.

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Wed 27 May 2020 13:32
Renault Captur - Knocking noise - Dione84
Thanks for the reply, I was travelling in the car when videoing the noise, it’s not present when stationary, the dealer has offered to refund us but we would then be left without a car, I just wondered if it would be an easy fix or they are missing something, I really like the car and am having a hard time finding another similar car for sale.
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Wed 27 May 2020 14:36
Renault Captur - Knocking noise - Railroad.

Ok so the vehicle is moving. The noise sounds rotational, like a driveshaft or something in the transmission. It's too regular to be suspension related.

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Wed 27 May 2020 17:17
Renault Captur - Knocking noise - sammy1

It seems that you have already given the dealer plenty of scope to put your car right. If it further turns out to be a major component due to fail you will be put in an even worse predicament. I would take the refund. There are thousands of cars out there just buy from another reasonable dealer or indeed the same one!

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