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ADVAW8S



Member Since: 05 Oct 2021
Location: PNW
Posts: 28
United States 
Banbury wrote:
I had the N47 engine and this had the timing chain issue. You know when it is going to go as it has this horrible tick'ing noise.
Loads of us on babybmw.net had issues. BMW would not officially recognize it as a fault. Many replaced the whole timing chain kit. Some lucky folks had a contribution from their BMW dealer - towards labour etc.

That being said the view is that the B58 is more robust. Many have put a lot of miles on the B58 and plenty have had them tuned/ chipped without issues. As long as you serviced it and many used shorter intervals for oil changes...


I had a N55 in my 335i that blew out the turbo at 75k. The only concern with the BMW engine is the turbo. BMW moved to plastic turbo and was told from an independent BMW dealership that the turbos tend to go between 65 to 100k. Now I abused that car and was much younger.
Post #937729 14th Jan 2022 5:30pm
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4230
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
A good look inside an expired B58. Anyone know what the logic is for putting the timing gear at the gearbox end? Surely doesn’t make for easy maintenance in the future.

 2007 110 TDCi Station Wagon XS
Post #940075 29th Jan 2022 7:43pm
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Supacat



Member Since: 16 Oct 2012
Location: West Yorkshire
Posts: 11018
United Kingdom 2013 Defender 110 Puma 2.2 XS DCPU Keswick Green
A couple of theories on previous page.

$21k for a replacement engine from BMW Shocked
Post #940119 30th Jan 2022 5:22am
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Bluest



Member Since: 23 Apr 2016
Location: Lancashire
Posts: 4230
United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
If the reason is indeed weight distribution, then I would say the negatives outweigh the positives in the Grenadier’s application. In the Supra it make more sense. I know they are supposed to be fit for life, but 10, 15 years down the line it’s likely become an (expensive) maintenance item that the home/bush mechanic will find an unnecessary challenge. BMW have form for timing chain problems in several of their recent engines. As a minimum, long term owners wanting peace of mind are going to have to adopt a regime of early oil changes with finest quality lube I reckon. 2007 110 TDCi Station Wagon XS
Post #940148 30th Jan 2022 10:15am
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