Thread: M62tu timing chain tensioner

No, it's possible. I did mine while back.

I've done a couple of timing chain/guides and tensioners jobs now and you can get to the tensioner without removing the A/C compressor but removing the rocker cover will make it a little easier. It's a little tricky and not much room for your hands down there. If memory serves me correctly it's a 19mm socket and if you use a 3/8 drive ratchet with a swivel joint you can get it.

But I'm not sure it is your tensioner. I'm thinking it might be your trigger wheel might have shifted. What code are you getting? Is it a P0021 or P0011?

Do you get a surge in power when you hit 3000rpm? if so your cylinder adaption values have exceeded 11deg causing the Vanos to go into a safe mode


Here is an old post of mine when I was trying to figure out some issues I had after the first timing chain job. (In this post when I talk about Chinese and German Auto Solution parts I only mean the timing tools.)

Vanos non functional after timing chain replacement M62

I didn't remove the rocker cover but I did remove the air cleaner housing.

Originally Posted by FisherX

I've done a couple of timing chain/guides and tensioners jobs now and you can get to the tensioner without removing the A/C compressor but removing the rocker cover will make it a little easier. It's a little tricky and not much room for your hands down there. If memory serves me correctly it's a 19mm socket and if you use a 3/8 drive ratchet with a swivel joint you can get it.

But I'm not sure it is your tensioner. I'm thinking it might be your trigger wheel might have shifted. What code are you getting? Is it a P0021 or P0011?

Do you get a surge in power when you hit 3000rpm? if so your cylinder adaption values have exceeded 11deg causing the Vanos to go into a safe mode


Here is an old post of mine when I was trying to figure out some issues I had after the first timing chain job. (In this post when I talk about Chinese and German Auto Solution parts I only mean the timing tools.)

Vanos non functional after timing chain replacement M62

it is P0011.
I've just driven it, and yes, it does seem like the power goes up at 3000rpm (though I'm used to a D4 where the second turbo kicks in a ~3000rpm), which might explain why my wife had previously complianed about a lack of power uphill when the revs drop off......

I can't find the post where I wrote about it and posted photos. I'll keep looking.

FOUND IT!

Someone who will actually do timing guides on M62??

Originally Posted by Banksy

it is P0011.
I've just driven it, and yes, it does seem like the power goes up at 3000rpm (though I'm used to a D4 where the second turbo kicks in a ~3000rpm), which might explain why my wife had previously complianed about a lack of power uphill when the revs drop off......

Ok your Vanos is in safe mode and non functional. P0011 is an over advanced timing code on bank 1. But it may not be advanced it may be retarded as mine was.

See if your scan tool can read live data and check your adaption values as you can see in my attached old post and let us know what you find.

Originally Posted by FisherX

Ok your Vanos is in safe mode and non functional. P0011 is an over advanced timing code on bank 1. But it may not be advanced it may be retarded as mine was.

See if your scan tool can read live data and check your adaption values as you can see in my attached old post and let us know what you find.

Just sitting in the driveway, on clearing the DTC's and starting up, the VANOS Bank 1 and VANOS Bank 2 values start at 94.9, very briefly drop to ~60 to 70 and bounce around for a few seconds, and then go back to 94.9 and stay there.

The DTC's have now changed to P0000 Electric Thermostat Circuit Fault, and P0012 Camshaft controls bank 1 fault.

Cleared and retried several times with the same result.

I didn't drive it anywhere, so assume that the P0011 will only come up if the engine gets under load?