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      04-27-2016, 09:49 AM   #20
NorthernDancer
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Drives: 325iX & 128
Join Date: Apr 2011
Location: Ottawa On Canada

iTrader: (3)

N52 coolant change

Just did a change on N52
1. no intercooler so nothing in the way
2. maybe 13 8mm screws to remove belly pan
3. another 2 screws to remove small front belly pan
4. did not have a "big" screwdriver to remove plug; used 25 cent coin instead
5. my front end was maybe a big high so I only got 5 litres out; I let drain for about 15-20 minutes.
6. I slowly added 5 litres of fresh coolant/water mix. Engine took it all so 5L out and 5L in.
7. I bled by running engine for a while with CRT cap off and bleed screw open.
8. both belly pans went back on pretty easily