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E39 M5 and E52 Z8 Discussion 1998-2003 Advertiser's Forum

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post #21 of 31 Old 16th June 2019, 10:09 PM Thread Starter
PNWe39Guy
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Just got home after a weekend in Leavenworth Wa for the 2019 "Leavenworth Drive", the M5 drove great and turned a few heads along the way. Even 7 months pregnant my wife was a trooper and came along.
It is incredible how these cars can make what is about a 3-hour drive feel like no time at all.

The only issue I had was about 2/3rds of the way there I got an error message saying "tire defect", after a quick search in the owners manual it appears that is supposed to mean I have a flat tire. When I got the message I slowed down and got off the road when I had a chance. After checking the pressures in all 4 tires, they were all right on. I did not have cell coverage in the area where this happened so we continued one and once we did have service I found some instances of this error message online.

As I understand it, this message is triggered when a wheel speed sensor notices that one wheel is spinning at a different RPM than expected and assumes that is because tire pressure has dropped making the size of the tire different and causing different RPMs. Am I understanding that correctly?

My assumption is that the sensor is either failing, gone bad, or is just experiencing general electrical issues. From what I read online, it sounded like a dealer or someone with a programming tool could turn this feature off?

Curious what others have done with this.

Current
2001 M5, Jet Black with Nappa Heritage Leather
2013 N55 X3
1999 Toyota 4Runner
1962 Mercedes-Benz 220S Heckflosse

Past
2000 Dinan 540i
2005 Toyota Tundra
1999 Jeep Cherokee Laredo (horrible car)
1995 Toyota Tacoma 2.7
2000 BMW 528i
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post #22 of 31 Old 17th June 2019, 12:25 AM
josiahg52
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That is how the RDW system works. You can inactivate it pressing the TPMS button once. Not sure what you mean asking what others have done with it. I use mine.

2/2001 M5, Jet Black, Exclusive Complete Black Walk Nappa Point Heritage Leather, Black Cubic Trim
8/2011 X5 xDrive35d Sport, Black Sapphire Metallic, Black Nevada Leather, Fine Burr Walnut Trim

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post #23 of 31 Old 17th June 2019, 03:30 AM
KevinM
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Quote:
Originally Posted by PNWe39Guy View Post
My assumption is that the sensor is either failing, gone bad, or is just experiencing general electrical issues. From what I read online, it sounded like a dealer or someone with a programming tool could turn this feature off?

Curious what others have done with this.
I wouldn't try to turn it off. It usually works fine. My experience with this type of system is that there is an occasional "false positive." I would just reset it and see how it goes. I don't take the M5 on long trips any longer, but when I did the Bimmerzone space saver spare provided me priceless peace of mind.

Kevin

2020 M2 Competition, Hockenheim Silver/6MT
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post #24 of 31 Old 17th June 2019, 05:47 AM
DaveinGigHarbor
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Hope it was caused by the rear tires spinning faster than the front tires were rotating!

2000 BMW M5, Anthracite with Heritage black leather
2008 Audi RS4 Cabriolet, Datona Gray with silver leather
2017 Chevy Silverado, my economy car!!!
1999 528iT, black/black, 212k miles. The Black Rat
2002 540iA, Silver with black leather


Gone but not forgotten:
2000 BMW 540/6 - Silver
2000 BMW 540/5 - Blue
2002 BMW 540/6 - Grey
2001 BMW 525it/auto
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post #25 of 31 Old 21st June 2019, 10:55 PM Thread Starter
PNWe39Guy
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I've reset the system and will be taking the car for a decent length drive tomorrow, so we'll see.

Current
2001 M5, Jet Black with Nappa Heritage Leather
2013 N55 X3
1999 Toyota 4Runner
1962 Mercedes-Benz 220S Heckflosse

Past
2000 Dinan 540i
2005 Toyota Tundra
1999 Jeep Cherokee Laredo (horrible car)
1995 Toyota Tacoma 2.7
2000 BMW 528i
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post #26 of 31 Old 6th July 2019, 08:36 PM Thread Starter
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The "tire defect" issue seems to have resolved its self by resetting the system. So that's good.
Having the week of the 4th of I decided to get up early one day and take the car for a bit of a joy ride to test out my new camera. I recently picked up the Canon 5D Mark IV to replace my 5D III.
If anyone is into photography we can go way down that rabbit hole but all in all the camera is awesome. I think it actually takes sharper photos than my 1DX.

Between the Leavenworth drive and my joy ride, the M5 has seemed to develop a bit of a shake under braking, especially heavy braking.
I've read pages and pages of forum conversations and it seems to come back to thrust arms and "warped rotors", which I know is a myth of sorts. let's call it the simple way of saying uneven deposits on the pads, a potentially stuck caliper or some other brake issue.

This morning I reviewed the documentation I have on the car, and got under it and checked the thrust arms. They and the bushings seem to be fine. no twist or play. Also knowing that the suspension had a total overhaul in 2016, and the car has had less than 10,000 miles put on it since then, I'm inclined to believe its brake related.

Going to pick up some OEM pads and rotors this week and see if that resolved the issue.

[IMG]Untitled[/IMG]
[IMG]Untitled[/IMG]

Current
2001 M5, Jet Black with Nappa Heritage Leather
2013 N55 X3
1999 Toyota 4Runner
1962 Mercedes-Benz 220S Heckflosse

Past
2000 Dinan 540i
2005 Toyota Tundra
1999 Jeep Cherokee Laredo (horrible car)
1995 Toyota Tacoma 2.7
2000 BMW 528i
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post #27 of 31 Old 8th July 2019, 02:10 AM
DaveinGigHarbor
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There is a new foreign repair shop in Gig Harbor called Getie's Garage. They have some serious new equipment, including a Hunter Roadforce balancing machine and a first in the country alignment machine that uses cameras and nothing touches the car. Owner just sold his E39 M5 before he sold his repair business in Salt Lake City and moved to Gig Harbor. Pretty sharp guy with an immaculate shop if you need either of those services if the brakes do not resolve the shaking.

2000 BMW M5, Anthracite with Heritage black leather
2008 Audi RS4 Cabriolet, Datona Gray with silver leather
2017 Chevy Silverado, my economy car!!!
1999 528iT, black/black, 212k miles. The Black Rat
2002 540iA, Silver with black leather


Gone but not forgotten:
2000 BMW 540/6 - Silver
2000 BMW 540/5 - Blue
2002 BMW 540/6 - Grey
2001 BMW 525it/auto
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post #28 of 31 Old 10th July 2019, 02:37 AM Thread Starter
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Quote:
Originally Posted by DaveinGigHarbor View Post
There is a new foreign repair shop in Gig Harbor called Getie's Garage. They have some serious new equipment, including a Hunter Roadforce balancing machine and a first in the country alignment machine that uses cameras and nothing touches the car. Owner just sold his E39 M5 before he sold his repair business in Salt Lake City and moved to Gig Harbor. Pretty sharp guy with an immaculate shop if you need either of those services if the brakes do not resolve the shaking.
Good to know! Thanks for this Dave.
I typically do all my own work, and anything I can't do goes out to a buddy of mine who is a 25 year BMW Master tech and race car builder. Also looking for a good alignment shop though! Those are getting harder and harder to find.

Current
2001 M5, Jet Black with Nappa Heritage Leather
2013 N55 X3
1999 Toyota 4Runner
1962 Mercedes-Benz 220S Heckflosse

Past
2000 Dinan 540i
2005 Toyota Tundra
1999 Jeep Cherokee Laredo (horrible car)
1995 Toyota Tacoma 2.7
2000 BMW 528i
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post #29 of 31 Old 10th July 2019, 06:57 PM
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Glad to hear that car went to a good home! I got a chance to test drive it since I live in Spokane and was in the market. I think you flew in that weekend and picked it up. The vibration during braking was there when I drove it. It didn't seem major, but I didn't have it at highway speeds. Did you take the louder exhaust that he had too? Also, IIRC I think that car had Koni shocks on it. You happen to know if it has the blue Dinan springs or if they were stock springs?

I ended up with a 2000 M5 and the suspension needs work. I did like the way that car rode and was wondering about the suspension set up on it.

Congratulations on the M5 and enjoy! Glad the car stayed in the PNW.
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post #30 of 31 Old 10th July 2019, 08:55 PM Thread Starter
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Quote:
Originally Posted by FastwithClass View Post
Glad to hear that car went to a good home! I got a chance to test drive it since I live in Spokane and was in the market. I think you flew in that weekend and picked it up. The vibration during braking was there when I drove it. It didn't seem major, but I didn't have it at highway speeds. Did you take the louder exhaust that he had too? Also, IIRC I think that car had Koni shocks on it. You happen to know if it has the blue Dinan springs or if they were stock springs?

I ended up with a 2000 M5 and the suspension needs work. I did like the way that car rode and was wondering about the suspension set up on it.

Congratulations on the M5 and enjoy! Glad the car stayed in the PNW.
Ahhh "the other buyer", nice to e-meet you.
The brake vibration was very minimal when I first bought the car, but since then I've put quite a few miles on it. More than the PO did in the entire time he owned it in my understanding.
I did take the louder exhaust and think I am going to have it welded back on sooner than later. My 540i was easier to hear in the cabin than the M5 is and I miss that to an extent.

The car has the full Ground Control Kit on it.
Ground Control does use Koni shocks as their coilover shock, which is good. I like Koni's had them on my previous e39s. It also has the camber plates and adjustable sway bar end links.
I like the suspension a lot, although it can be a bit harsh at times.

All and all the car has been exactly what I hoped it would. I took a chance not doing a PPI but after seeing the records and spending some time poking around the car I felt pretty confident in the buy. The little work I have done on the car has all proved it to be well taken care of as much as I can tell.

Glad you found one. Did it come out of Spokane as well?

Current
2001 M5, Jet Black with Nappa Heritage Leather
2013 N55 X3
1999 Toyota 4Runner
1962 Mercedes-Benz 220S Heckflosse

Past
2000 Dinan 540i
2005 Toyota Tundra
1999 Jeep Cherokee Laredo (horrible car)
1995 Toyota Tacoma 2.7
2000 BMW 528i
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