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Astra J 1.6 CDTi (B16DTH) Weird Engine Noise When It's Cold

49K views 53 replies 13 participants last post by  kktomaz  
#1 ·
  1. Hi there. My car is an Astra 1.6 Diesel. I noticed a weird sound today. I have added the video links down there. Can anyone help me about what are the things that can cause this sound? Thank you.
 
#5 ·
#10 ·
I've listened to it, does not sound like the timing chain to me (I'm not expert though), but I did have a timing chain issue on a previous K with the same engine. I've also had a DMF replaced on a different engine, didn't sound like that either when it failed. Sounds more like a type of squeak, possibly pulley related. I'd take it to an independent diesel specialist for another opinion.
 
#18 ·
Sounds like chain to me... This engine is notorius for having on of the chain guids falling apart( good when catched early... Disaster catched when comlletly falls apart...)

Edit: if you are close to 100k do your chain wil save you a lot of "crying" later...
 
#20 ·
Trouble is with this noise , is that it’s present from cold but gone when engine is warm never to return. If it was damaged parts on the timing chain the noise would be constant or worse.
heat expands , cold contracts.
 
#21 ·
I need to come back on this, puting 5w40 will create premature damage in time as was meant and designed on dexos2 5w30... The 5w(w-winter) is affecting cold ussage of engine up to 50celsius not the second number.
 
#23 ·
Update : Our mechanic found out that camshaft gear is causing tot his problem. And he said that we need to change chain and some other parts immediately. So the car is at the mechanics shop and gonna be done in 3 days.
 
#27 ·
I feel your pain. What age is it? I know there was a revision with 2018 on models inc my 2018 1.4t, to 0w 20 oil. When the chain & tensioner starts to go you'll know about it. My brother had an Astra J with the same engine, managed to cover 96k with it, without any timing chain issues, although his dpf packed up at that mileage. He was using it for short trips though, towards the end, which I'd advised him not to do.
 
#30 · (Edited)
The recommendation from Vx for the 1.6D is Dexos 2 5w30 up to M/Y 18 and OV 0401547 0w20 M/Y 18 on,specifically if it's a B16DTH the recommendation is dexos 2 right through unless it's a euro 6d emissions spec car,
personally if i had one i would probably use the 0w20 myself regardless of year.
One thing to bear in mind if the chains/gears/guides are wearing and rattling is that they have now introduced a gasket
(part number55515025) to go behind the tensioner (previously no gasket at all)
this has a small hole presumably to limit the amount of oil drainback.

Image
 
#33 ·
Vaux are doing them for free on a recall are they not? As long as your car has a fvsh & has covered less than 100k?
Although I don't think they'll change it unless your engine is rattling. At least the engine does not have to to dropped either to change it. Must be worth changing yourself though, prior to any rattling.
 
#34 ·
I don't think it's a recall George,it's their usual cop-out "upon customer complaint"
but it may mean engine out if any damage is found
"2. Inspect the timing chain tensioner and the timing chain for damages
Note: Replace worn and damaged parts"
 
#38 ·
so how does customer complaint work? do I need to have had a full vauxhall service history, which I don't and does the chain need to be rattling or can I just mention about the gasket and get it fitted? even better, how is acess and I'd purchase the gasket and fit it myself if I can get into it easy enough? cheers
 
#41 ·
Thanks for answer
I found part number on tensioner gasket - 55515025 , can you confirm that this is correct gasket for latest tensioner .
One more question - is it possible to change only - tensioner + gasket and cam cover without timing chain ?
My opel insignia b is on - 105 000 km
 
#45 ·
Hi again, my opel insignia b 1.6 cdti 136 ps now is in opel garage .
They order latest tensioner - 55505562 , but when they check vin of my car they don't see tensioner gasket - 55515025 for it but no problem to order it. You are 100% sure that for latest tensioner - 55505562 must use gasket - 55515025 ?
I hope for fast response

Thanks