My Mini Clubman Cooper diesel overheated and broke down due to a coolant leak, pulled over a few hundred yards after the warning light came on. Garage has carried out a compression test - 300 on one cylinder, 200 on two others, fourth cylinder could not get the glow plug out as it was just turning. They have taken the cylinder head off but on visual inspection cannot see anything that would cause the low compression, gasket did not look too bad, no signs on the cylinder wall of any cracks or piston ring failure. A few signs of heat damage only to some hoses as they were stripping it down. Valves appear okay. They have quoted me £1750 ($2,249.27 USD) for reassembling the head, replacing the gasket and hoses, but said they cannot guarantee this will resolve the low compression. Their next course of action they say would be to replace the fuel pump at £1100+vat.($1,413.83 USD) Seems to me a huge gamble to instruct this work if they are not sure it will fix the problem. Any advice would be much appreciated!
have the same problem?
Monday, September 3rd, 2018 AT 1:45 PM