Hi folks,

Does anyone else get this noise, or have i got an impending failure. MY15.5 HSE SDV6.

On start up, uually from cold, after about 5 mins a strange rumble kicks in from the engine. It sounds like a compressor or some sort but is in 'time' with the engine. A quick dab on the accelerator to raise the revs usually stops it.

I wondered if it's the suspension compressor or something, but it's very noisy.

Cheers in advance,
Dobbs

If it is an appreciable deepening of the exhaust note, it will be the EGR valve doing it's thing. MY2016 HSE D SDV6 - gone due to fuel dilution problems.

By the age of 50 you have the face you deserve - George Orwell.

Wilf wrote:

If it is an appreciable deepening of the exhaust note, it will be the EGR valve doing it's thing.

rumble or dull knocking? - at low engine speed can be main bearings but that usually also happens under load as well at low engine speed.

Are any of the ancillary brackets to alternator etc loose?

It's def a rumble, like a compressor rattling away. Not a knock or pink thats for sure.

Its going in soon to get looked at, no doubt I'll get the old 'cannot replicate fault' diagnosis.

I had a funny noise from mine recently - more like the bass on a stereo was turned up full, or a slightly blowing exhaust, than a rumble. Turns out the serpentine belt was loose because one of the pulleys was angled. This came to light when the belt fell off completely and the alternator stopped working (battery light lit up, then lots of other lights). A bolt had sheared. A 10 part but the engine needs to come out to replace it. RRS MY17 SDV6 AB
Evoque MY17 TD4 AB

Aha. So it turns out this was the exhaust blowing, but not the main pipe. Apparently there’s a smaller secondary pipe by the dpf, which on mine was cracked. The pipe opens up after about 5mins on idle when the egr kicks in.