https://z4-forum.com/threads/should...ilt-your-opinion-welcome.155001/#post-2149243
See above for initial post last year.
Apologies as this is about my E39 525i that I have owned for 13 years, not my Z4, but I really value your opinions.
No compression so car was transported to garage May 25 to have oil rings replaced and other worn/dirty parts replaced. Estimate was £2500.
After endlessly chasing garage owner/mechanic for seven months I was eventually told I needed rebore, new pistons, cylinder head decoke, etc. I gave go ahead last November expecting bill in excess of £5000!
More chasing and eventually got car back February with new MOT. Nine months later.
Apart from a few miles I did not drive car for a month because of the following issues.
ABS and ASC warnings coming on after few miles that garage told me "just came on the morning I collected car" . Code readers said NSF signal fault so I replaced that sensor with two genuine BMW and one new Bosch sensor but no improvement. ABS module had probably gone faulty while with garage
Investigating condensation on windows identified leak from rear door barrier thst over a very wet winter while with garage had soaked rear carpet so I had to remove all seats, centre console and HVAC controls to remove carpet and dry in the house for a week. Then repair vapour barrier.
No windscreen washer as hoses had been very poorly bodged with incorrect colour/bore pipe with super glue and bits of copper! I had to replace them from pump to jets with proper black hoses/junctions.
I had to replace all four three year old 5mm treaded tyres as the sidewalls had cracked and were misshapen from standing for many months. I also took the opportunity to have the wheels refurbished by South West Wheel Repairs in Exeter that did an excellent job.
Engine under tray was missing. Garage assured me this would be found and replaced when I returned for 500 mile engine oil and filter change, so I left it at that.
Rear bumper had been resprayed (actually quite well) but I was not told about any incidents.
Once back to commuting gently and running engine in for 500 miles, I noticed other issues.
Aircon was not working at all, just hot air.
Engine was very tight, easy to stall and consumption down from 31 to 26 mpg. Mechanic told me this was to be expected and would improve after 5000 miles.
Vibration/misfire while driving and progressively worse over 65mph and worryingly bad over 70mph. I have had all four wheels swapped around, changed pressures, had wheels balanced, tyres off, wheels checked and rebalanced but no improvement so issue is elsewhere.
Oil leaking from sump gasket. A job I spent three days doing for MOT 7 years ago, and not something I was ever going to tackle again.
I am not enjoying driving what should be a smooth comfortable old 5series.
Anyway car is back with garage today to have oil changed and remedy issues. I have been looking at images I took last year for insurance and found this one that clearly shows aluminum heat shield protecting ABS module from exhaust; another item that I now realise has not been refitted to my car whilst with garage. As I understand it omission of this shield is the primary cause of the circuitry in module breaking and causing expensive time consuming repairs.
So I await the return of my beloved E39 in goodworking order but honestly expect a vast host of problems, bills and excuses.
Please feel free to advise/give opinions.
Thanks.
See above for initial post last year.
Apologies as this is about my E39 525i that I have owned for 13 years, not my Z4, but I really value your opinions.
No compression so car was transported to garage May 25 to have oil rings replaced and other worn/dirty parts replaced. Estimate was £2500.
After endlessly chasing garage owner/mechanic for seven months I was eventually told I needed rebore, new pistons, cylinder head decoke, etc. I gave go ahead last November expecting bill in excess of £5000!
More chasing and eventually got car back February with new MOT. Nine months later.
Apart from a few miles I did not drive car for a month because of the following issues.
ABS and ASC warnings coming on after few miles that garage told me "just came on the morning I collected car" . Code readers said NSF signal fault so I replaced that sensor with two genuine BMW and one new Bosch sensor but no improvement. ABS module had probably gone faulty while with garage
Investigating condensation on windows identified leak from rear door barrier thst over a very wet winter while with garage had soaked rear carpet so I had to remove all seats, centre console and HVAC controls to remove carpet and dry in the house for a week. Then repair vapour barrier.
No windscreen washer as hoses had been very poorly bodged with incorrect colour/bore pipe with super glue and bits of copper! I had to replace them from pump to jets with proper black hoses/junctions.
I had to replace all four three year old 5mm treaded tyres as the sidewalls had cracked and were misshapen from standing for many months. I also took the opportunity to have the wheels refurbished by South West Wheel Repairs in Exeter that did an excellent job.
Engine under tray was missing. Garage assured me this would be found and replaced when I returned for 500 mile engine oil and filter change, so I left it at that.
Rear bumper had been resprayed (actually quite well) but I was not told about any incidents.
Once back to commuting gently and running engine in for 500 miles, I noticed other issues.
Aircon was not working at all, just hot air.
Engine was very tight, easy to stall and consumption down from 31 to 26 mpg. Mechanic told me this was to be expected and would improve after 5000 miles.
Vibration/misfire while driving and progressively worse over 65mph and worryingly bad over 70mph. I have had all four wheels swapped around, changed pressures, had wheels balanced, tyres off, wheels checked and rebalanced but no improvement so issue is elsewhere.
Oil leaking from sump gasket. A job I spent three days doing for MOT 7 years ago, and not something I was ever going to tackle again.
I am not enjoying driving what should be a smooth comfortable old 5series.
Anyway car is back with garage today to have oil changed and remedy issues. I have been looking at images I took last year for insurance and found this one that clearly shows aluminum heat shield protecting ABS module from exhaust; another item that I now realise has not been refitted to my car whilst with garage. As I understand it omission of this shield is the primary cause of the circuitry in module breaking and causing expensive time consuming repairs.
So I await the return of my beloved E39 in goodworking order but honestly expect a vast host of problems, bills and excuses.
Please feel free to advise/give opinions.
Thanks.
Devon
At the summit of the picturesque fens
