I've been reading the forums for a while now and you seem like a very helpful lot!
I've noticed for several months now that there's what I can only describe as a "tapping/rattle" coming from the front driver (o/s) side of the car. The rattle doens't seem affected by engine revs, using the brakes or by what type of road surface is being driven on (bumpy, smooth etc..). My local Vauxhall dealer looked at it and said there was "slight play" in the drop-links so replaced them but this unfortunately hasn't gotten rid of the noise or reduced it at all. Might just be me but the noise appears to be getting worse/more noticeable now that the weather is warming up (which may be pure coincidence). I've tried driving down the road and turning the engine off to see if the noise was engine related but the noise was still there.
The engine sometimes sounds a bit rough on start-up too but may be unrelated (it's a 1.6 CDTI 136ps). Also on inspecting the engine compartment I noticed that the air box has quite a bit of movement on it so a possible cause?
I left the following list in the car when it went in last time to have this fixed and that's where they wrote about the drop-links, don't know if they checked them all though to be honest.
- Engine mountings
- Drop Links/Link Arm/Lower arm bushes
- Wheel bearings
- Suspension Bearings
- Air intake box
- Plastic strip above radiator
- Anti-Roll bar bushes/link
- Missing clip brake calliper
.as an opel mechanic, we have seen these particular engines fail, the problem is with the chain tensioner, there is a plastic piece on it that tends to wear off, this way plastic bits fall down to the oil pump and gets stuck between the sprocket and the chain, causing to lose oil pressure , this is what causes the rattle, we have had 7 cars with this problem since december 2017, we had cases where the engine eventually locked up and needed to be replaced, but when diagnosed on time the whole distribution set and clutch gets replaced on warranty with updated parts, the clutch gets replaced too cus the distribution is on the side of the gearbox, making it the only way to access distribution is by removing the gearbox, it's a total repair time of about 15 hours?
Rattling noises seem trivial in comparison to major components failing but the car is only a year and a half old and this very noticeable rattling noise is getting quite irritating!
Thanks in advance for you help!