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Old 01-05-2013, 08:22 AM
noka noka is offline
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Location: MA
Join Date: Jan 2003
Posts: 343
Mein Auto: 2013 x35i M-Sport
Originally Posted by c3uo View Post
Just so everyone knows, I have read a few articles (see Motor Trend long term test) where the capacity increases due to expansion in the hoses, etc. Seems completely normal (but unique to BMW).

So in summary, watch your coolant level and expect to add 1 litre between 15,000 and 20,000 miles.
It's difficult to believe that hoses could expand enough to accomodate about 15% more coolant. I'm curious, when people had the low coolant message, was there any coolant visible in the reservoir? If some was visible, I wouldn't have a problem driving it to the dealer for a top-up. If not visible, then you really have no clue how low it is and I would be hesitant to risk driving it.
2013 x35i (Space Gray, MSport, CW/CWII, DHP, Premium, Premium Sound, Technology, BMW-Apps)
Retired:'09 C300 4Matic, '09 GTI, '06 750i, '05 C55, '04 R32, '03 M5, '02 GTI, 01 M5, '00 M-Coupe, '00 540i/6, '99 M3 Coupe, '98 M3 Coupe, '96 328i, ..., '86 4000CS Quattro, ... too many to list
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