strange repeating noise

Luka.123 · Post by **Luka.123** » Sat Jul 03, 2021 4:33 pm

HI!

When i drive my car little harder i get this repeating noise and i wonder what it is. Its really bothering me so i want to fix it.
Mechanic says its disa valve is this true?

Thanks.

The Zed Shed · Post by **The Zed Shed** » Sat Jul 03, 2021 4:38 pm

Erm, that doesn't sound good, never heard that on an N52 and I've worked on quite a few - Possibly one of the DISA valve actuators??

Mike

Luka.123 · Post by **Luka.123** » Sat Jul 03, 2021 4:48 pm

I dont know =(
And sound keeps going on after i turn down the engine like 2-3 times. Maybe its something electrical.

The Zed Shed · Post by **The Zed Shed** » Sat Jul 03, 2021 4:52 pm

The DISA valves return to their rest position when you turn off the ign, so I would start there.. Probably stripped teeth on the actuator/flap.

Mike

Luka.123 · Post by **Luka.123** » Sat Jul 03, 2021 4:58 pm

thanks for info

Luka.123 · Post by **Luka.123** » Sat Jul 31, 2021 5:43 pm

I have changed disa valve and noise is still there =(

maybe any other suggestions?

Zulu4 · Post by **Zulu4** » Sat Jul 31, 2021 5:47 pm

Could you use a car stethascope to pinpoint exactly where the noise emanates from ?

Mike6 · Post by **Mike6** » Sun Aug 01, 2021 5:24 pm

What about the serpentine belt tensioner

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