Stalling and/or "Crank no Start" Due to Failed Crankshaft Position Sensor on Mercedes-Benz C320

Problem Description and Possible Solution

The engine may develop a stalling and/or no start condition due to a failed crankshaft position sensor.

Problem Data
RepairPal Verified
Average mileage: 104,989 (11,500–195,000)
5 model years affected: 2001, 2002, 2003, 2004, more2005
54 people reported this problem
Viewing 1 - 20 of 29 comments
I changed the sensor and for a month no problems then did some short errands and the engine quit at a red light you could crank but it would not start waited about 15 minutes started up drove home ordered another sensor first day in did some short runs and it quit again in a parking lot nearly at a stop waited 20 minutes started back up so I assume its not the sensor going to put original back in any ideas
My wife's 2003 C320 is having the same problems. Sometimes the car keeps on cranking but it won't start and on two occasions the car stalled at the traffic light. We're not sure if it's due to crankshaft position sensor failure but it's very annoying because you dont know what the car will stall. Can anyone tell us the cost to fix the problem? Thank you!
In the morning the car would start fine. After driving about 20 mins. and turing the car off, if will not start up again. I would have to let it cool off anywhere between 5 - 8 hours. Took it to a mechanic, said the fuel injectors were "going" bad, and it would cost $1,400.00 to replace. I declined his service. Since then, the car will stall out at a light, or even while driving. Took it to Advance Auto for free diagnostic. The codes that came up were P0335, P0123, and P0456. I want to fix and keep the car, but I can't afford to spend $1,400 to fix it, and beside, I don't really trust the mechanic's diagnosis.
chk eng light came on, hooked up code reader ( adv autopart ), bad crankshaft position sensor.
car will not start if engine hot.

replace crankshaft position sensor about $40. Took 3 hours to find it with on line pictures aid, and 30 minutes to replace
Crankshaft position sensor:
For those that have replaced the crankshaft sensor and the problem reoccurred. Consider replacing both the Crankshaft and the camshaft sensor using the OEM parts (dealer). The two work in unison and often supplied in a "matched" pair. Purportedly calibrated together by the manufacturer. Not always available that way in the aftermarket auto stores
This happened to me twice today. The second time it had to be towed to the dealer. It puts a sour taste in my mouth being I only purchased this car a month and a half ago. I love the looks and the ride but not the problems nor the price to fix them....
Had crank sensor replaced but they charged me $100 for the part and $150 for labor. I got ripped off. It's a $40 part and takes 20 minutes to install. Wish i knew then what I know now, posses me off
I have had the crankshaft sensor fail twice. The first time the car would stall, and the dash panel would go completely red and say battery terminal problem. After a few minutes if I removed the key and reinserted it, the car would start again and be good for a day or so. The problem showed up in the engine core as bad crankshaft sensor.
About 10000 miles after replacing the sensor, the car gave me trouble starting in the morning and same problem.
Obviously these sensors are not manufactured very well.
Engine would crank but not start. Called MB dealer they sent flatbed hauler. Driver of flatbed ask for the key to help load the vehicle, he tried the start and the car started right up. The car would not start the previous three days. The dealer now has the car in for repairs.
Just had Engine dead with P0335 code car starts once the engine cools down but its scary and risky to drive with this issue, car can loose power any time while you are driving better to get sensor changed at the first occurance
I have been having this issue for about a month when I start the car but when I restart the car, It may or may not work fine. Hit or miss. I am taking my car to the shop this weekend.
My 2005 Mercedes C320 keep shutting off while driving, Now i don't drive it at all, it's only car i have, I lost my job because of it, i only have it since May 2014, I don't know what to do! Hoping for recall! i am really sick of this!
It stalls and stops and then after 20 or so minutes starts again, runs a while and stops again. The mechanic says it is the cam sensor.
According to mechanic car will run all day without stalling but when try to drive it that's where the problem begins however I'm finding out about those sensors crankshaft and camshaft thanks my mechanic don't have a clue
The other day the check engine light came on, and a quick diagnosis at my oil change guys, said it was a transmission sensor.

Turns out its the same issue everyone else is reporting here. I went a day or so and found that after stopping at an appointment, came out 20 mins later, and no go. Cranked, but no start. So, started it cranking in P(ark), then as it cranked (without starting), shifted it very quickly into N(neutral). Hey presto it starts right up. Anyhow, its happened a few times now, but only one stall in traffic (at a stopped position thankfully) at a red light.

I am going to replace the crank and cam shaft sensors, and hope that works.