Expansion tank recommendations

[JakeGT]

Hi all,

It appears my N52 has developed the cracked expansion tank so just looking at where to get a new one from & if it's worth going for genuine BMW or OEM?

Can someone confirm the part number is 17117573781 because I was looking at this..

https://www.ebay.co.uk/itm/BMW-Genuine-Radiator-Expansion-Tank-E46-E53-E83-17117573781/180931872843?_trkparms=aid%3D555017%26algo%3DPL.CASSINI%26ao%3D1%26asc%3D54808%26meid%3D5804110fddd640e8aeb221a2f8c6da64%26pid%3D100505%26rk%3D1%26rkt%3D1%26%26itm%3D180931872843&_trksid=p2045573.c100505.m3226

Conversely an OEM is around £35 but I don't want to buy cheap, pay dear.

Thanks

 

[NickDE]

Go for genuine BMW. A lot of the cheaper ones look OK, but don't quite fit right.

 

[Beatman]

I bought my replacement from GSF two years ago. Fitted no problems, and no leaks

 

[JakeGT]

Thanks for the replies. The part number I actually need is 17117573751. Just need to definitely confirm it's the tank. The car would decide to do this as soon as the weather goes colder :roll:

 

[donkey-feet]

I also purchased mine from GSF. It fitted fine with no issues.. (6 months ago)