High Usage Vehicles May Experience Ignition Lock and Tumbler Failures on Mercedes-Benz E420

Problem Description and Possible Solution

Due to wear, high usage vehicles can experience ignition lock and tumbler failures. The ignition lock cylinder will generally require replacement to correct this concern.

Problem Data
RepairPal Verified
Average mileage: 138,890 (13,400–233,000)
3 model years affected: 1994, 1995, 1997
16 people reported this problem
Viewing 1 - 8 of 8 comments
Ignition switch was difficult to turn for a time, and eventually it stopped turning.
The ignition rey wont turn the tumbler
The key just wouldn't turn. The dealership wants $1164 to fix it..... Can you say NUTS
My key ignition will not turn so the car won't start what do I do how much would it cost for me to fix it
Key would have to be jiggled to get tumblers in correct position to turn car on. Did not wait for it to fail completely as it would have been more exspensive to repair as the key needs to be in a certain position to remove the entire unit. $700 later it's repaced and repaired. Had to be done by repair shop as ther are special tool and small hands that are needed to do the repair. If you are having this problem, get the work done before it completely fails.
I took it to the shop and it cost me $1300. I thought this was definitely overpriced.
For some time it was diffcult to turn the ignition using the key. Overtime it worsened, and finally I was unble to turn it at all.
The switch will not turn at all. For some time, it was difficult, but eventually it would turn after a number of attempts. One day it stopped altogether.