E39 M5 in LA (The "mu5") - BMW M5 Forum and M6 Forums
E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

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post #1 of 24 Old 11th September 2018, 09:19 AM Thread Starter
prr
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E39 M5 in LA (The "mu5")

As a husband and wife team, we purchased a 2002 Titanium Silver M5 on August 26th and we thought it would be fun to document our maintenance, repairs and restoration of the car. As a background, the husband has some experience working on cars while the wife is eager to learn! The car is in good shape for its age and mileage of roughly 126k. It was a daily driver for a while but recently has not been driven much. We just ordered a Peake code reader as well.

We took it for a PPI and they said the following things would be good to address:

Oil Change (done below)
Wiper Blades (doesn't rain much here but will get to it soon)
AC belt is worn (will diy soon)
Water Pump looks like its may need to be replaced (have been told by some may need to replace the whole cooling system in that case)
Flex Disk is cracked
Cabin air filters (they looked fine to us but we can diy if we need to)
Valve cover gaskets (will diy at some point, but the car appears to not leak any fluids and its parked in the same spot each day and one was done about 20k ago)
Rear Main seal (was told this may reseat given the car was rarely driven lately and if this does need to be replaced may do the clutch too, which still feels great)
Power Steering hoses are said to leak so we will monitor the fluid levels

The previous seller changed the transmission and differential fluid around 115k miles and the spark plugs around 110k miles so we have some time before that routine maintenance will be needed again. Brake Fluid was changed at the 100k service

Work done so far:

The second day of ownership the fuel pump failed so we had that and the fuel filter replaced and took the opportunity to get an oil change then as well. Not the best start as that looks like a reasonable DIY job but given we had the car towed to the shop and needed to get it back out on the road we did not have another option.

New rear tires- Michelin Pilot Sport 4s

Project List:

Fill in/ repair paint chips on hood and buff out various scratches
Figure out a way to do bluetooth whether it is with stock head unit or aftermarket such as a Dynavin
Replace AC belt
Replace Expansion Tank Cap
Coolant Flush - i dont see a record of this having been done and it does not look like it was done at 100k
Replace flex shaft
Replace Valve Covers
Replace power steering hoses
Replace water pump

We can't wait to detail our journey with the car and hope that we can both learn and teach by doing so. Please if anyone has any comments or advice we are all ears. Also we have an instagram: @mu5adventures so feel free to follow!

And now for some pics:
Attached Images
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post #2 of 24 Old 12th September 2018, 01:52 AM
Lloyd Braun
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post #3 of 24 Old 12th September 2018, 02:20 AM
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You might also want to consider replacing the 2 MAF sensors, 4 CPS and 2 TPS. I replaced these just a few months ago on my 2003 with 114K miles and the car is running much better since.
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post #4 of 24 Old 12th September 2018, 04:25 AM
KevinM
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If the CPS and MAFS are original, I definitely agree with Garry. At that mileage, consider replacing the radiator and the fan clutch as well. I assume the O2 sensors were changed at 100K (although I change the pre-cat O2 sensors every 50K miles). Do you have many maintenance records?

Welcome!

Kevin

2020 M2 Competition, Hockenheim Silver/6MT
2002 M5, Sterling Gray/Caramel
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post #5 of 24 Old 12th September 2018, 05:34 AM
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I'm also in LA and just picked up your car's twin (albeit a 2003 with 80k miles)!

Mine came with pretty good maintenance records but I just replaced MAF's and have Pre-cat O2 sensors on the way. MAFs made a big difference in low rpm responsiveness for me. Hoping for similar level of improvement with the O2 sensors.

Enjoy in good health and I look forward to you documenting your restoration!
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post #6 of 24 Old 12th September 2018, 03:52 PM
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If you need any help feel free to PM me.

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post #7 of 24 Old 12th September 2018, 07:31 PM
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Quote:
Originally Posted by KevinM View Post
If the CPS and MAFS are original, I definitely agree with Garry. At that mileage, consider replacing the radiator and the fan clutch as well. I assume the O2 sensors were changed at 100K (although I change the pre-cat O2 sensors every 50K miles). Do you have many maintenance records?

Welcome!
Good point about the O2 sensors. I also replaced all 4 O2 sensors shortly after I got the car. Haven't replaced the radiator yet but will probably do that very soon.
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post #8 of 24 Old 13th September 2018, 12:27 AM Thread Starter
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This is great. We will add the radiator to the list. The car did come with a decent set of records from the prior owner who bought the car at 86,701 miles

The CPS were replaced at 111k
R side valve cover gaskets were replaced at 105k (the receipt refers to this as bank 1) but the PPI said that both should be replaced so we will get to it at some point.
O2 sensors have not been replaced as the previous owner said it never failed smog but it seems many on the forum recommend replacing the pre-cat sensors.
MAFs were cleaned 5k ago so I will probably wait on those for a bit longer.

The code reader came yesterday so we will take a look to see what it says tonight.
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post #9 of 24 Old 13th September 2018, 12:56 AM
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Nice find! Looks like a good example that's maintained well enough to be worth the purchase but still has plenty to keep you busy.

'03 M5 | 987.2 Cayman | @kian.ski
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post #10 of 24 Old 13th September 2018, 05:31 AM
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Quote:
Originally Posted by prr View Post
This is great. We will add the radiator to the list. The car did come with a decent set of records from the prior owner who bought the car at 86,701 miles

The CPS were replaced at 111k
R side valve cover gaskets were replaced at 105k (the receipt refers to this as bank 1) but the PPI said that both should be replaced so we will get to it at some point.
O2 sensors have not been replaced as the previous owner said it never failed smog but it seems many on the forum recommend replacing the pre-cat sensors.
MAFs were cleaned 5k ago so I will probably wait on those for a bit longer.

The code reader came yesterday so we will take a look to see what it says tonight.
The collective experience of the board is that cleaning the MAFS usually results in a temporary improvement (I've never tried it). If your MAFS truly have 85K on them, you might notice a welcome improvement in performance by replacing them. Or not...I replaced mine at 60K just for kicks and didn't really notice much. If the O2 sensor have not been replaced, I'd definitely at least do the pre-cat ones. The post-cat sensors can wait until 100k miles or longer.

Kevin

2020 M2 Competition, Hockenheim Silver/6MT
2002 M5, Sterling Gray/Caramel
2007 Z4M Coupe Silver Gray/Black
2016 F80 M3, Mineral Grey/Golden Brown/6MT European Delivery - gone
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