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Engine coolant change

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rally-chris
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Engine coolant change

Post by rally-chris » Sun Apr 15, 2018 8:46 am

Is the car badged as SI? If so it’s the N52 engine. Alternatively post us a picture of the under bonnet view and we can confirm which engine you have.
08 Z4 3.0si Sport Coupe in Montego Blue
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Truman
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Engine coolant change

Post by Truman » Sun Apr 15, 2018 11:26 am

Puggsley2 wrote: ↑Sun Apr 15, 2018 12:40 am The car is a 2005 model which I presume is pre facelift. (In fact I've never had one). Going off the VIN I'd say the engine was N52
Put the last 7 digits of your VIN in here..it'll tell you lots of stuff

https://www.bmwvin.com/
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mjennings23
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Engine coolant change

Post by mjennings23 » Mon Apr 16, 2018 9:06 am

Puggsley2 wrote: ↑Sun Apr 15, 2018 12:40 am The car is a 2005 model which I presume is pre facelift. (In fact I've never had one). Going off the VIN I'd say the engine was N52
2005 is pre-facelift indeed, so I would expect the M54 engine. Far as I'm aware the N52 was facelift only, at least in European markets.

Visit Realoem website and put your vin in the serial search, then select engine from the list that appears. Should show you if it's M54 or N52.

The procedure is different for both, as the N52 has an electric pump to circulate coolant whereas the M54 has a belt driven pump.
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