Vauxhall Mokka 16.cdti turbo noise.

Vauxhall Mokka 16.cdti turbo noise.

Author
Discussion

xtruss

Original Poster:

181 posts

212 months

Friday 2nd July 2021
quotequote all
Hi, just after some feedback on what is probably a failed turbo, so before I pull it apart to replace it does anyone have any other thoughts?
It’s my girlfriends 15 plate Mokka 1.6 diesel. It started last week making a whistling when coming on boost and slight loose of power in the higher gears.
I looked for a leak but couldn’t see one visual, and she is off work next week for a few days so thought i would look properly then.
However today it upped its game and it sounds like a fun fair ride. On tick over it makes a fan like noise, which you can stop by pushing open the wastegate. I am assuming it’s the turbo that’s gone. No smoke from the exhaust or much oil in the intake.

Link to video of car. https://youtu.be/uNtShkPCok4

stevieturbo

17,260 posts

247 months

Friday 2nd July 2021
quotequote all
Pull the air inlet pipe off and have a look/feel.

xtruss

Original Poster:

181 posts

212 months

Saturday 3rd July 2021
quotequote all
I pulled off the inlet pipe, i could feel probably around 2mm up /down movement of the shaft, no in out movment.

stevieturbo

17,260 posts

247 months

Saturday 3rd July 2021
quotequote all
2mm sounds like a lot for such a small turbo.

Although hard to see on the photo if the blades have been making any contact with the housing, or the ends of the blades are burred from that.