Sounded like a drive shaft scraping the ground then it lurched 3 times
Thread Starter
Junior Member
Joined: May 2020
Posts: 26
Likes: 4
From: Alabama
GL550
Sounded like a drive shaft scraping the ground then it lurched 3 times
Turning left into a Publix parking lot. Suddenly and without warning a scraping noise as if a drive shaft had fallen out of an older car and was scraping the ground. Then the truck lurched three time and then idled normally. This has been ten days ago and hasn't exhibited the scraping and or lurching again.
I did a scan with my Icarsoft MBIII and got these fault numbers
9010 The voltage was less than 9. O V durung 5 s
9036 Undervoltage detection. Undervoltage is not detected until after 5 s and a voltage of <9.5 v
9030 under voltage detection undervoltage is not detected until after 5 s and a voltage of <9.5 v
C361 local undervoltage at circuit 30 (voltage 9.5 v)
9128 supply voltage of the Control Unit is Too Low (undervoltage)
A10A00 the power supply in the system is too low.
Could any of these codes make the truck have a scraping sound and lurch three times.
Could the problem be in one of the codes/faults?
Anyone else ever had this problem?
I did a scan with my Icarsoft MBIII and got these fault numbers
9010 The voltage was less than 9. O V durung 5 s
9036 Undervoltage detection. Undervoltage is not detected until after 5 s and a voltage of <9.5 v
9030 under voltage detection undervoltage is not detected until after 5 s and a voltage of <9.5 v
C361 local undervoltage at circuit 30 (voltage 9.5 v)
9128 supply voltage of the Control Unit is Too Low (undervoltage)
A10A00 the power supply in the system is too low.
Could any of these codes make the truck have a scraping sound and lurch three times.
Could the problem be in one of the codes/faults?
Anyone else ever had this problem?
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Joined: Jan 2010
Posts: 3,114
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NGL450 w/EORP, S550
Crash bang kerrang noises need eyes on and will rarely ever correlate to a code.
get under the car and find the damage from the piece of metal you picked up and dragged a few hundred feet that one time a few weeks ago.
those codes you posted are unrelated to that event and point more towards a low voltage event caused by a failing or momentarily disconnected battery.
get under the car and find the damage from the piece of metal you picked up and dragged a few hundred feet that one time a few weeks ago.
those codes you posted are unrelated to that event and point more towards a low voltage event caused by a failing or momentarily disconnected battery.
Last edited by Max Blast; Dec 21, 2023 at 08:45 PM.
Thread Starter
Junior Member
Joined: May 2020
Posts: 26
Likes: 4
From: Alabama
GL550
I agree about the codes being unrelated to the noise. I got on my hands and knees at looked for the noise as soon as it happened. There's nothing under the car. I thought I'd run it past experts like yourself.
I recently change the rear brakes and rotors. Akebono brand. Could it be that my rear shoes and rotors grabbed and made the scraping noise, released and grabbed a couple of times to cause the lurching?
Probable? Possible?
I recently change the rear brakes and rotors. Akebono brand. Could it be that my rear shoes and rotors grabbed and made the scraping noise, released and grabbed a couple of times to cause the lurching?
Probable? Possible?
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Joined: May 2015
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From: Allentown, PA
'08 GL 320 CDI
I agree with Max - get completely "under" the car, not just looking from the perimeter, and give everything a good once over. Even if it turns out you didn't drag anything, it's a possibility so you need to check closely for damage.
I can't imagine brakes making that noise?
I can't imagine brakes making that noise?
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Joined: Jan 2010
Posts: 3,114
Likes: 782
NGL450 w/EORP, S550
Hmm, might be worth checking to see if you still have all pads and brake hardware installed.
Excessive scoring of a rotor or broken or missing hardware could be the witness marks of the sensation you’re describing.
Get eyes on it.
about the only thing I can think of that would cause lurching or brakes grabbing is a failing wheel speed sensor that triggers ABS at random low speeds. The noise could probably be a loose brake shield.
id have the car read out with a proper MB scan tool to look further into any of these low voltage events having burned out a wheel speed sensor - somehow, they don’t like it when a new battery is applied - the text you’re looking for is “xxxx wheel speed implausible signal”
Excessive scoring of a rotor or broken or missing hardware could be the witness marks of the sensation you’re describing.
Get eyes on it.
about the only thing I can think of that would cause lurching or brakes grabbing is a failing wheel speed sensor that triggers ABS at random low speeds. The noise could probably be a loose brake shield.
id have the car read out with a proper MB scan tool to look further into any of these low voltage events having burned out a wheel speed sensor - somehow, they don’t like it when a new battery is applied - the text you’re looking for is “xxxx wheel speed implausible signal”
Last edited by Max Blast; Dec 22, 2023 at 10:28 AM.
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Joined: May 2015
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From: Allentown, PA
'08 GL 320 CDI
To better explain... I can't imagine brakes making that noise and then "fixing themselves" 
Any of the small parts around the brakes wouldn't make such a big noise or cause "lurching"... "dragging", yes, but doubtful on the lurching. I suppose anything's possible and it's easy enough to pull a wheel and check.
Lurching sounds more tranny related. POSSIBLY the low voltage caused issues at the tranny. Look up a better definition of those codes -- what is: circuit 30, control unit and system -- what "system", etc?
Any of the small parts around the brakes wouldn't make such a big noise or cause "lurching"... "dragging", yes, but doubtful on the lurching. I suppose anything's possible and it's easy enough to pull a wheel and check.
Lurching sounds more tranny related. POSSIBLY the low voltage caused issues at the tranny. Look up a better definition of those codes -- what is: circuit 30, control unit and system -- what "system", etc?
Last edited by DennisG01; Dec 22, 2023 at 06:15 PM.
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MBWorld Fanatic!
Joined: May 2015
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From: Allentown, PA
'08 GL 320 CDI
Go to a parking lot - get some speed and stomp on the brakes to activate the ABS (wet ground would be easier). Is this the sound you heard?
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From: Emmett, ID, USA
2007 GL450
The wheel speed sensor is in a different location. It senses the rotation of the wheel bearing.
