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1999 E46 318i SALOON NEW TYPE EXPANSION TANK

2.7K views 4 replies 2 participants last post by  E46 PIERRE  
#1 ·
Just got my car back,after second Expansion tank in 2 years burst open!!

I collected tank from BMW main dealer for the garage that recovered my car!

I asked them is this the new type tank made from a stronger material,which ive heard now exists,from postings on here.

Havent got a clue they told me!! But this part number has been revised at some stage???

Anybody know is this tank likely to be the new strong un burstable one,or a old type one thats gonna cause me more grief in the near future??

Anybody know when this new type appeared on the scene? It looks just like the old one to look at??
 
#5 ·
Iv finally got to the bottom of this!!!!

Expansion tank was originally Part number 17137787039( This being the pain in the arse splitting Tank)

The above number was revised,when they changed the material to stop the splitting problem.

The new number is part number 17117573780 ( which is split proof)

Ive crossed checked the old number on Real OEM and this checks out!!!

Luckily iv got the new type!! Must be old stock floating about though, if u need a new tank make sure it has the new part number!!