Tricky one. 500 yards at say 30 mph would mean the engine ran for about 20 seconds after impact turning at say 1500rpm, so thats perhaps 500 revs with a rapidly dropping oil level. Is that enough to starve the engine / turbo of oil long enough to do major damage?
A new pan is available on Ebay for £40. A website called Click Mechanic quotes 2 hours labour for a garage, so say £150 to £200. So perhaps £250 to replace the sump.
A non-runner S60 07 reg is worth perhaps £300 or £400?
07 S60 diesels are being advertised on Autotrader for between £2500 and £3500 depending on mileage.
So arguably to buy the car and get the sump replaced would come in around £600 to £700. Which is a total bargain IF the car is otherwise good, and IF the engine is OK.
Second hand engines sell on Ebay for £400, but it would make sense if fitting a new motor to get a decent recon with a warranty. Say you budget £1200 to £1500. If the car can be bought for a few hundred, then it definitely makes sense to get a reconditioned engine.
I'd say that if the car is otherwise superb, with a low mileage, and you plan to keep it then provided that it can be bought cheaply, and that you can get a reconditioned engine with a total outlay of less than £2000, then that makes sense.
Trusting to luck that no damage was done seems to me to make less sense. You could spend on the car and a new sump, only to find you still need the engine anyway.
Cheers
Jack
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