Vibration

[flying oyster]

Hi I seem to have a vibration issue with my car it doesn’t affect the drive or handling and doesn’t come through the pedals it only seems present at around 70 to 80 miles an hour I’m suspecting the undertray is loose at back and flapping at speed I had a look undercar and looks like there’s is two bolts missing at back
Does anyone have a picture of how it attaches please so I can compare any info much appreciated

 

[NHN]

Show me your underside.

Rear of engine cover has iirc 2 or 3 bolts, usually I find garages forget to refit these rear ones.

 

[JayA3sline]

3 bolts on the rear tray on the 8P. Torx 30 I believe from memory

 

[flying oyster]

Show me your underside.

Rear of engine cover has iirc 2 or 3 bolts, usually I find garages forget to refit these rear ones.

You were right as usual thank you for reply
Two bolts fitted vibration gone smiling again

 

[flying oyster]

3 bolts on the rear tray on the 8P. Torx 30 I believe from memory

Thank you was the two bolts at back had come loose or not fitted all sorted now god this car makes me nervous when I think there’s something wrong