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Skoda Fabia TSi 1.2 with DSG bought Jun 2011

There have been a number of threads about the 1.2TSi and annoying rattling.

The one that I'm talking about can be heard once the engine has warmed up and when sitting in the driver’s seat. It sounds like "diesel engine-like" tapping when the car is at idle and at the slowest engine revolutions.

The slightest touch on the accelerator (probably only increasing the revs by 20 or 30) stops the noise.

Engaging D with the foot on the brake increases the engine revs just enough to stop the noise.

Note: This thread NOT about air intake or air-conditioning pipe noises but specifically for the noise that comes from the pulsating petrol pipe.

This pipe runs under the driver's seat and emerges in the engine compartment on the left when looking under the bonnet. The petrol pump causes the pipe to pulsate and this gets coupled into the body/drivers compartment.

I can make it come and go to order (see photos) and was able to get the Skoda garage not only to hear it but get onto Skoda UK.

They admitted that there was a known problem and had made an official mod kit called "foam sound deadening piece to fit to fuel lines"

It was fitted to my car at the same time as the 10,000 mile service. An upgrade called "24W6" (to fit shim to turbo and update software) was done at the same time.

You may want to try to make the noise come and go (as photos) so as to be confident that the noise is not from other sources.

Note: My own unofficial mod kit was to jam a piece of foam to keep the fuel pipe forward as in picture 1 but I think that this was just moving the pipe run under the driver's seat. Over a period of time, the foam would deform and the noise would return.

It's early days yet to see if the official mod works. Let’s see how it goes.

retiredbri

Edited 28 June, 201214 yr by retiredbri