Critical Problem: Engine shuts off at low speeds
Thread Starter
Junior Member
Joined: Aug 2002
Posts: 70
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From: Atherton, CA
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Critical Problem: Engine shuts off at low speeds
(crossposted on W211 and Tech Talk)
Car is a 2007 E350 with about 2k miles left on the warranty. From time to time, when I'm creeping along at low speeds (think pulling away from a stop sign), the engine will die. Loses power steering/brakes, but radio and electronics stay on. The electronics may have also died when this first started, but the most recent time, they did not. I coast/brake to a stop, shift into park, and the car starts up without drama.
The dealer looked at the car a few months ago, performed load tests, stated no codes were thrown, and gave an OK. The problem did not manifest again until this weekend, when it happened three times within a two mile drive home. The day before, a CEL had popped up and disappeared, which the dealership attributes to a cam shaft sensor. The car was towed to the dealership and again, there is no obvious source for the problem and they are taking no real action besides fixing that cam shaft sensor and driving the car for about 30 miles.
Could this have caused the whole issue? I'd hate to be in my car if this occurred at speed....
Car is a 2007 E350 with about 2k miles left on the warranty. From time to time, when I'm creeping along at low speeds (think pulling away from a stop sign), the engine will die. Loses power steering/brakes, but radio and electronics stay on. The electronics may have also died when this first started, but the most recent time, they did not. I coast/brake to a stop, shift into park, and the car starts up without drama.
The dealer looked at the car a few months ago, performed load tests, stated no codes were thrown, and gave an OK. The problem did not manifest again until this weekend, when it happened three times within a two mile drive home. The day before, a CEL had popped up and disappeared, which the dealership attributes to a cam shaft sensor. The car was towed to the dealership and again, there is no obvious source for the problem and they are taking no real action besides fixing that cam shaft sensor and driving the car for about 30 miles.
Could this have caused the whole issue? I'd hate to be in my car if this occurred at speed....
Last edited by customcdseller; Nov 15, 2010 at 05:44 PM.
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Joined: Oct 2010
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clk350
Mercedes 350 CPS and/or balance shaft problem
Hi,
You might want to "search" this website for two problematic issues affecting vehicles built between 2005 and 2008 that have the 350 [aka 272 and/or 273] engines:
1. Crankshaft Position Sensor (CPS)
2. Balance Shaft Issue...this problem is huge, and seemingly kept hush-hush by Mercedes. Here's a must-read link: http://www.peachparts.com/shopforum/...d.php?t=271866
Number one will cost $50 in parts and around $300 for MB to fix. Number two will run you over 5-thousand if out of warranty.
Good luck.
You might want to "search" this website for two problematic issues affecting vehicles built between 2005 and 2008 that have the 350 [aka 272 and/or 273] engines:
1. Crankshaft Position Sensor (CPS)
2. Balance Shaft Issue...this problem is huge, and seemingly kept hush-hush by Mercedes. Here's a must-read link: http://www.peachparts.com/shopforum/...d.php?t=271866
Number one will cost $50 in parts and around $300 for MB to fix. Number two will run you over 5-thousand if out of warranty.
Good luck.
Last edited by bambu1; Nov 21, 2010 at 11:04 PM.
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Joined: Oct 2010
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clk350
lkchris,
I purchased a CPO clk350 with an engine serial number that falls into the range of those affected with a defective balance shaft. Mercedes knew about it, the dealer knew about it. But the consumer (me) was kept in the dark until I raised the question having subsequently read about the class action suit regarding the balance shaft problem. The MB tech informed me that eventually they'll need to remove the engine from my car to replace the part! If I knew that was a potential problem, I'd have passed on that model vehicle. Who would knowingly purchase such an auto knowing that the engine will most likely need a partial rebuild within 100K?
A known major engine flaw has been passed on to consumers without any fair warning by the manufacturer or the dealer. They had the facts but kept it quiet. At the very least, in my opinion, this is an unethical business practice.
tx
I purchased a CPO clk350 with an engine serial number that falls into the range of those affected with a defective balance shaft. Mercedes knew about it, the dealer knew about it. But the consumer (me) was kept in the dark until I raised the question having subsequently read about the class action suit regarding the balance shaft problem. The MB tech informed me that eventually they'll need to remove the engine from my car to replace the part! If I knew that was a potential problem, I'd have passed on that model vehicle. Who would knowingly purchase such an auto knowing that the engine will most likely need a partial rebuild within 100K?
A known major engine flaw has been passed on to consumers without any fair warning by the manufacturer or the dealer. They had the facts but kept it quiet. At the very least, in my opinion, this is an unethical business practice.
tx
Newbie
Joined: Nov 2010
Posts: 6
Likes: 0
Sprinter
(crossposted on W211 and Tech Talk)
Car is a 2007 E350 with about 2k miles left on the warranty. From time to time, when I'm creeping along at low speeds (think pulling away from a stop sign), the engine will die. Loses power steering/brakes, but radio and electronics stay on. The electronics may have also died when this first started, but the most recent time, they did not. I coast/brake to a stop, shift into park, and the car starts up without drama.
The dealer looked at the car a few months ago, performed load tests, stated no codes were thrown, and gave an OK. The problem did not manifest again until this weekend, when it happened three times within a two mile drive home. The day before, a CEL had popped up and disappeared, which the dealership attributes to a cam shaft sensor. The car was towed to the dealership and again, there is no obvious source for the problem and they are taking no real action besides fixing that cam shaft sensor and driving the car for about 30 miles.
Could this have caused the whole issue? I'd hate to be in my car if this occurred at speed....
Car is a 2007 E350 with about 2k miles left on the warranty. From time to time, when I'm creeping along at low speeds (think pulling away from a stop sign), the engine will die. Loses power steering/brakes, but radio and electronics stay on. The electronics may have also died when this first started, but the most recent time, they did not. I coast/brake to a stop, shift into park, and the car starts up without drama.
The dealer looked at the car a few months ago, performed load tests, stated no codes were thrown, and gave an OK. The problem did not manifest again until this weekend, when it happened three times within a two mile drive home. The day before, a CEL had popped up and disappeared, which the dealership attributes to a cam shaft sensor. The car was towed to the dealership and again, there is no obvious source for the problem and they are taking no real action besides fixing that cam shaft sensor and driving the car for about 30 miles.
Could this have caused the whole issue? I'd hate to be in my car if this occurred at speed....
The 350 petrol engine has a Crank shaft sensor fault this will cause the engine to cut out when warm...
Thread Starter
Junior Member
Joined: Aug 2002
Posts: 70
Likes: 0
From: Atherton, CA
.
Update: Car exhibited a similar problem today multiple times, each time shutting off in rapid succession within a few seconds of each other (basically bucking like an animal). CEL illuminated and I'm pretty sure I'm leaking some fluid. Waiting for another tow....thank you for all the information above. I will bring it up to the dealership.
Should have bought a second Porsche....
Should have bought a second Porsche....
Last edited by customcdseller; Nov 29, 2010 at 08:39 PM.
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Newbie
Joined: Nov 2010
Posts: 7
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From: Winterpeg
95 202
lkchris,
I purchased a CPO clk350 with an engine serial number that falls into the range of those affected with a defective balance shaft. Mercedes knew about it, the dealer knew about it. But the consumer (me) was kept in the dark until I raised the question having subsequently read about the class action suit regarding the balance shaft problem. The MB tech informed me that eventually they'll need to remove the engine from my car to replace the part! If I knew that was a potential problem, I'd have passed on that model vehicle. Who would knowingly purchase such an auto knowing that the engine will most likely need a partial rebuild within 100K?
A known major engine flaw has been passed on to consumers without any fair warning by the manufacturer or the dealer. They had the facts but kept it quiet. At the very least, in my opinion, this is an unethical business practice.
tx
I purchased a CPO clk350 with an engine serial number that falls into the range of those affected with a defective balance shaft. Mercedes knew about it, the dealer knew about it. But the consumer (me) was kept in the dark until I raised the question having subsequently read about the class action suit regarding the balance shaft problem. The MB tech informed me that eventually they'll need to remove the engine from my car to replace the part! If I knew that was a potential problem, I'd have passed on that model vehicle. Who would knowingly purchase such an auto knowing that the engine will most likely need a partial rebuild within 100K?
A known major engine flaw has been passed on to consumers without any fair warning by the manufacturer or the dealer. They had the facts but kept it quiet. At the very least, in my opinion, this is an unethical business practice.
tx
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