Mercedes-Benz
S430
37

"Crank no Start" Due to Failed Crankshaft Position Sensor on Mercedes-Benz S430

Problem Description and Possible Solution

The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance.

Problem Data
RepairPal Verified
Average mileage: 108,162 (47,985–188,000)
7 model years affected: 2000, 2001, 2002, 2003, more2004, 2005, 2006
37 people reported this problem
Comments
Viewing 1 - 20 of 20 comments
Car stops on stop signs and lights, Replaced crank position sensor.
Engine will crank, but will not start
same problem. Car won't start at a traffic light. Can be restarted after 20 minutes when the engine is coooled down.
will crank and start then stop . will start again after a while. it is at the repair shop.
Was driving the car, stop at an intersection, car shut off and wont start back. Had it towed. This morning it started. But afraid to drive it.
replaced crankshaft sensor
Just had the sensor replaced for $264.00 Runs like a champ.
same exact issue. had repaired for $200
A code on the dash board is. In 1200 mi
Went to start car and engine just turned over and over. Not even a hint it would fire. Two hours later it started right up. Check engine light on. Code diagnosed as crankshaft position sensor failure.
s430 runs for 15 minutes til warm cuts off, will start again after car is cooled off. no check engine light on when running sounds good .
going to replace crankshaft position sensor myself tomorrow cost $60 my labor free. from my research seems to be common problem when these symptons happen in Mercedes early 2000's models. wish me luck see other issues with vehicle.
Crank no start if engine is warm it will not start if it's cool it will
The description provided on this forum is the exact problem I'm experiencing. Triple "a" giuy stated is was possibly the fuel pump. Another friend of mine had this problem and described the symptoms he was having with his Merc. And now I'm having this same issue. I'm glad it was confirmed here.
Will crank but not turn over drove perfect the day before
It runs awesome then dies and won't start until it cools down
SAME AS YOUR ANSWER
Car would stall for no reason.After waiting for a few minutes it would crank but not start right away.After waiting for 15 minutes car would start.Replaced crank shaft assembly.
Just wouldnt start. never gave a indication.
Went to the airport got stuck there got towed to the dealer dealer must have known from what i explained but still charged for diagnos i wish i have seen this site before
Car would stop running. Wouldn't start right away. Started again after 10-15 minuntes. Replaced the Crank Sensor and problem was resolved.