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      12-06-2023, 04:43 PM   #6
crystalworks
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Quote:
Originally Posted by RockDriver View Post
Considering buying high mileage F15 diesel, most likely 30D. We're talking 100-150K miles. Place of action is UK. Available advertised options mostly state full or partial service history. Budget up to £15K...

Anyway, thoughts?
I wouldn't worry too much about the chain. That's a real concern with the 4 cylinder diesels. The N57, with regular oil changes and maybe a replacement tensioner(s) should be fine into high mileage. Our M57 was perfect when we sold it at 170,000 miles.

Transmission, service it with Valvoline Maxlife Multivehicle Full synth if you guys get it over there. Saved 2 different ZF transmissions with the stuff. One at 120,000 miles and one at 190,000 miles.

Driveshaft, if there is wear in the diff splines, get the enhanced one. If not, a regular replacement will do. Replaced ours at 108k with the Febi version.

If the engine and trans are currently in good condition. The only real gotcha might be the emissions stuff... and the HPFP which you mentioned not being as big a concern in the UK.

Good luck and happy hunting.
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