Vanos broken

[Mark CSL]

Well thats my CSL in BMW for its second vanos unit in 4 months not looking good the old E36 problem looks like its back :banghead:

[_Nathan_]

More like they didn't fix it properly first time!

What did they replace first time round?

[Mark CSL]

The vanos unit but not the gears

[E46ACS]

How do you know if the vanos is gone?

(a mate has just had his replaced on his E60 M5)

[Mark CSL]

When you rev the engine it rattles as the revs drop
And it sound like a pice of shit :hahaha:

[NZ_M3]

I am starting to wonder if you have the highest number (and most $$$) of warranty claims of all the CSLs in the world Mark :hahaha:

[_Nathan_]

So it hasn't gone again, they just didn't replace enough stuff first time round. Happened to a guy on MTorque too. Replaced unit and gears and all was fine.

[Mark CSL]

I am starting to wonder if you have the highest number (and most $$$) of warranty claims of all the CSLs in the world Mark :hahaha:

Yip I do get a lot of problems sorted under warranty :thumbs:

So it hasn't gone again, they just didn't replace enough stuff first time round. Happened to a guy on MTorque too. Replaced unit and gears and all was fine.

We shall see today when the cam cover comes off :whistle:

[Sailorbaz]

When mine went almost 2 year ago, I hadn't noticed any change in tone, fuel consumption and most importantly BHP. It was when it was in the workshop at BMW someone said it didn't sound like the 'other' CSL that was in and sounded a bit 'rough'. SO they brought the 'other' CSL in, a certain Stevie Gill's, and right enough, mine was a little more rattly. As it was under warranty, they removed the required parts and found it was indeed on its way out and replaced everything that looked sh1t!

This was when Stevie not long had his CSL so it was sounding standard back then.

After track days mine always sounds really tinny and rattly, anyone else get that?

Good luck with yours Mark, in at the usual dealers?

[glendog74]

After track days mine always sounds really tinny and rattly, anyone else get that?

Mine has started making a very slight rattle on tickover from cold since my recent track day at Donny. Gonna see what it's like after this weekend's fun and if its worse take it in!

[Mark CSL]

Yes baz at the garage i always use :thumbs:

They can do a vanos test on the unit when it is on the car
The tec said it was grinding when he ran the vanos test and it failed the test
he wont know if it needs the gears till he removes the cam cover and can see if the gears have any ware :whistle:

[HC1963M3]

Yes baz at the garage i always use :thumbs:

They can do a vanos test on the unit when it is on the car
The tec said it was grinding when he ran the vanos test and it failed the test
he wont know if it needs the gears till he removes the cam cover and can see if the gears have any ware :whistle:

Normally (as I understand it) a Vanos test is run first. If the test is failed the gears are replaced. If after their replacement the test results don't fall within the specified parameters the Vanos unit is replaced.

The lads at Simpson MS said mine was noisy and I thus took it to my local dealer and they replaced it (under warranty) The improvement in power at the top end of the rev range after its replacement was VERY noticeable.

[NZ_M3]

Vanos delete kit group buy perhaps?? :hahaha:

[Thorney]

You can ignore a bit of noise but if the noise changes or gets louder over time then its worth investigating. Failure is mind numbingly rare on 46's but that doesn't mean that BMW dealers dont like to change them willy nilly to keep the business going

[thegingerninja]

I was under the same impression that they can go a little bit rattly and it is nothing to worry about. Apparently it is quite obvious when they are on the way out -but like you say, BMW will do anything to make some money.