Reviews of OEM BMW parts For Business

genuine BLUE BMW coolant (they released a GREEN BMW coolant around 2019 so remember to specify you want BLUE when ordering parts now). I dilute it 50/50 with distilled water (not tap water).

BMW blue only.

BMW only. Not saving yourself any money in the long run being cheap with this particular fluid. It isn\u2019t even that much more expensive than other brands.

OEM stuff from BMW.

Only use bmw brand it has special additives for the electric water pump

Only the OEM bmw blue coolant. Don\u2019t use anything else.

BMW coolant; it\u2019s cheapish, certified, and you should need it again unless a leak issue.

I replaced my water pump at about 205K miles. I had seen someone on e90post mentioning he saw fault codes before his pump failed. I decided I could wait if I kept a close eye. At about 205K miles was when I saw a fault code via ISTA/D. It mentioned something about "...water pump speed deviation..."

Ran into similar issue here- dealer thought it was a defective valve ($1200) then after fixing that they said I need a new compressor ($3k). My biggest fear was this- what if replacing compressor isn't going to solve the issue? They could come back with another $8k bill as they have done to you. I think this approach is underhanded and not comprehensive at all.

So I decided $1200 was enough and sold it. Even with broken AC, the market is paying damn well for the EVs now. I'd take advantage of it if you can and get another car. I'm definitely staying away from BMW.

I have a similar problem coming up, my OBD dongle mentioned a pressure-discrepancy in the aircon system, and it is simply not blowing cold air anymore. It also makes a 'tikking' sound when it is enabled. (from the left-rear-wheel-well) Sounds like I might have the same problem. I have a 2014 REx with 60k miles.

My take on the whole thing: BMW dropped the ball here. Replace it now if you have a 2014/2015 i3, and you have not replaced it yet.On BMW's advice of basically replacing the whole system (incl the loops in the battery), I don't quite agree with this, because when you replace the compressor, you should also replace the drier, which (if I'm not mistaken) contains a filter. Which would filter any metal particles.