BMW M60 & M62 V8 Engine - Simple fix for Inlet Manifold - BMW M60/M62

Inlet manifold leaks on the BMW V8's are a bit of a pain, as removing the inlet manifold involves removing 20 year-old parts that crack, disintegrate and get lost. This video shows how to fix inlet manifold leaks WITHOUT removing the manifold using nothing more than the addition of 10 x M12 form 'A' washers.

I did this repair on my BMW 840ci with the M62 engine in 2014 - adaptations had reached their limit and I was getting misfires at idle and poor low-rev performance. I had removed the inlet manifold on my old E32 V8 in the past and knew what a pain it was, the most worrying thing was that it involved bending the ancient engine looms at ungainly angles - and on old brittle wires that is asking for problems - let alone getting those blasted connectors off the injectors, the possibility of getting grit in the engine and all sorts of other hassles.

So, this time I used a simple method as described here to fix the problem - and it fixed it rather well with no problems four years later.

During recording I also found that one of the vacuum take-off point bungs had failed after five years and replaced that as shown.

The write-up can be found here:

I'll cover the PCV and throttle-body gaskets in another video

BMWManifold #BMWVacuumLeak #AirLeak

[urbanstorm]

Great Video, I'm going to try this on my E39 540. I live in Texas and on the occasional time where it gets cold outside the engine at cold start with vary its RPM at idle until it warms up after a few minutes. I suspect that air is getting past the inlet gaskets.

[Maximilian]

today I am going to do just what you have shown here, its rather simple and very useful to rid of vacuum leak, also I have to replace CCV in the back seal and in the front which is going to be real pain I am afraid. Thanks for the vid :)

[kenreid]

Tim did you ever do a throttle body gasket video yet?

[t-tanking]

Hello Timm thank you very much, you helped me on the bimmer forum with the main fuse next to the battery on my E31, hey whats the part number on that plug in the back of the manifold you said u changed 5 years ago thers one pic of the bottom plug but not the top one … thanks in advance my friend cheers!!!

[dennissalisbury]

I just did this washer fix under the manifold fixtures and I didn't believe it would be so easy but I was proved wrong. I'm chasing a vacuum leak, I think, on my 2004 Range Rover Land Rover 4.4l W/ BMW 62M TU engine, and hope this is a fix?

[sijustme]

I think this may only work on gaskets that are still pliable. On my car E38 M62b44, they (gaskets and compression washers) basically turned to plastic and the manifold gaskets had cracks everywhere.

[benm]

On the manifold next to the ccv what is the name of that little orange gasket ?

[Aronsson]

What is the partnumber for just the rubber gaskets? cant seem to find a partnumber for them

[ausm]

Hey Timm...love the channel...it has provided some very useful tips that I have been able to apply to my 2001 E39 540i M do have a couple of questions relating to this manifold gasket leak fix....
1. Do you re tighten the hollow fixings until they bottom out, or is there a torque setting that should be used, and secondly my issue may not be related to the manifold gaskets leaking but I have tried a lot of things to try and fix it. The engine starts and idles fine and accelerates very well, but what it does do is hunt or surge when you have just a small amount of throttle applied.
Codes say missfire on bank B, but the problem does not seem to be evident at any other stage of driving other than light frustrating as I have replaced coils, plugs, airflow meter, fuel filters, crank case ventilator (rear of intake manifold)...cleared any oil residue in the plug wondering if as other's have suggested, it could be injector seal leaking, but I have never had them out welcome any thoughts you may have on keen to try and try the washer method as it is simple and cheap to do, and I hope may well solve the problems I have....cheers Dale M ( Aus )

[bully]

Hi Timm, stumbled across your post while looking for specific compression rubber gromets/washers. Couple of questions hoping you can help with. On the inlet manifold spacer, in particular the rubber compression washer, would you say the internal diameter hole is around 10mm? and the wider part be around 24/25mm external diameter. Lastly would you know where in the UK I could buy just the rubber gromets .. cheers in advance.

[CluelessdaWorld]

AWESOME insight and way of remedy on the inexpensive side of DIYdom...Thnx a million....Unlike GDMN Kardashians, You deserve millions of Christmass (if you celebrate it) and all holidays you care AZ, ,USA

[CosmicMomentumX]

Thanks so much for posting! I know nothing about my e32 740 and you've helped me so much

[breakz]

@Timm Whats your take on using the lower temperature thermostat (88 Degrees)to reduce temperatures and reduce gasket and timing chain guides wear?

[Staniel_]

purchased fixer 530i with m60b30 engine. drive it home but immediately started cleaning the car. under the intake manifold had became home for many rats/mice and upon blasting the leaves out with an air hose i cracked the already brittle knock sensors.

next day after some rest we pull the manifold off and did all we thought would’ve been necessary for maintenance; new knock sensors, hosing, new gaskets, and a new throttle body. after reassembling we started the car and immediately there was a problem.

we had bought a 540 throttle body, so we swapped it out, tried it out again and low and behold the problem was…better. but now we have a misfire that wasn’t there prior.

we cleaned the coil packs/spark plugs but never replaced either. it’s one of those situations where i’ve spent a lot of time trying to get a result and i’m still scratching my head. hoping spark is all the issue is.

anyone above me have an idea what could be happening here??

[vr-cxlq]

ok Timm me again lol car is a 1994 740i the nuts on my m60 intake are 11mm is it still the m12 washers my car is stalling randomly today i got 3 miles out of it before on a downward slope it cut off there is a hissing under the hood and behind the cluster area i really want to get this thing sorted and going to a shop is not in the budget any insight is appreciated

[staffs]

Smart Guy... Hi Timm, could this leak be associated with an annoying 02 error (all 4 sensors are brand new) that keeps coming back on an otherwise smooth engine (202km RR-L322)

[crherniman]

I have a 2001 e38 I just picked up and mine has a line attached to that one that is capped in this application. The line is disintegrated. Should I cap it or replace it? Mine is a US spec car.

[vr-cxlq]

please sir i was changing my pcv on my 1994 740i following the instructions on your sight everything was going well all the bolts came out i was proceeding to try to remove it from the pipe i tried to head your words of warning about the pipe and unclipped it and man was that thing stuck in that tube .the pipe i tried to keep in place with long pliers but i guess i got a little to overzealous with the prytool and the pliers slipped and out came the pipe .please can it be re installed i dont want to pull the intake or the throttle body my car is in pieces need your help

[frankriedel]

Dear Tim.

I had a similar problem on my 840Ci (M62) but out of this other issues developed after replacing the crankshaft vent and the biggest one I face is fuel leaks from the injectors.

As good measure I removed the injectors and fitted new o-rings but now after 6-times taking things apart and fixing them back, still 3 are leaking at the top.

Do you have any suggestion on how best to tackle this problem?

Appreciate, thanks.

[aidastiskus]

Hi TImm
When removing oil filler cap should there be any vacum suction and engine rpm change?