srhutch said:
Das882 said:
Changed engine, gearbox and diff oils as well as auxiliary belts and oil filter. Engine oil sample is on its way to Millers for analysis...... fingers crossed
you'll know back within a week, very quick service.
can someone help me understand what the benefit is of sending off an oil sample? Are there further things you could do if the results come back with a problem? I'm thinking whether it's worth me doing this also as a service as due in this summer.
Also, can you tell me when you should look at changing the aux belts?
For me the answer to all your questions is peace of mind.....I bought the car at the end of last year, the car had been serviced by an indie less than 5 K ago but again for peace of mind I know now it is the correct oils and quantity that are in the car. As you are probably aware the S54 engines in the Z4M's can have issues with both top and bottom ends of the engine, the bottom being the big end bearings, so an oil analysis should flag any issues i.e. copper content in the oil etc. All being well oil wise I will attend to the potential top end issues....Vanos oil pump drive, seals, Cam sprocket cap screws etc. The belts I changed as it's only a 10 minute job and they are cheap to buy.......cheaper than an overheated engine due to a belt breaking. As it turned out the main auxiliary belt was good but the power steering belt was starting to crack.