my key will not turn in the ignition of my 2002 mercedes s430

30

Asked by Jan 23, 2015 at 12:35 PM about the 2002 Mercedes-Benz S-Class S 430

Question type: Maintenance & Repair

My key will not turn in my ignition of my 2002 mercedes s430.  Before it stopped, I was able to jiggle it a bit and it would start, that no longer works.

2 Answers

150

If this started happening after you changed batteries in your key, then it is your batteries, they are the wrong thickness, try putting key in with out batteries in case, it should turn and start right up. I had the same issue with my 2002 S500 wrong thickness or batteries, after replacing batteries, they should slid right back into casing without forcing them in case. Because that will cause laser and/or key not to be read when stuck in ignition. You should hear a small electronic click when key is inserted, if not batteries are too bid and is pushing on key laser....I hope this helps....2002S500

1 out of 1 people think this is helpful.
30

Actually, when I could not turn the key it prompted me to change the batteries, U then bought a new FOB, still did not work. The dealer said that the EIS may not be reading the key anymore (rather old) so I have just ordered a new key and waiting for delivery. I was told if that is not it, it may be in the ignition. However, if the key does not work I'll take it to the shop. Thanks

3 out of 3 people think this is helpful.

Your Answer

Add photo

Related Questions

Search Mercedes-Benz S-Class Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercedes-Benz S-Class Experts

#1 Tom Demyan
Tom Demyan
Reputation 690
#2 Michael Kane
Michael Kane
Reputation 500
#3 lightGear
lightGear
Reputation 410
View All

Related Models For Sale

Used Mercedes-Benz E-Class
383 Great Deals out of 22,214 listings starting at $1,450
Used BMW 7 Series
157 Great Deals out of 5,632 listings starting at $3,299
Used Mercedes-Benz C-Class
666 Great Deals out of 31,743 listings starting at $2,500
Used Mercedes-Benz SL-Class
71 Great Deals out of 3,116 listings starting at $4,500
Used Mercedes-Benz CL-Class
36 Great Deals out of 650 listings starting at $6,500
Used Land Rover Range Rover
91 Great Deals out of 4,788 listings starting at $5,000
Used Audi A8
42 Great Deals out of 1,808 listings starting at $4,995
Used BMW 5 Series
621 Great Deals out of 15,553 listings starting at $2,495
Used BMW 6 Series
139 Great Deals out of 3,282 listings starting at $6,999
Used Jaguar XJ-Series
62 Great Deals out of 2,388 listings starting at $2,495

Used Cars For Sale

2017 Mercedes-Benz S-Class For Sale
6 Great Deals out of 2,152 listings starting at $93,685
2016 Mercedes-Benz S-Class For Sale
4 Great Deals out of 528 listings starting at $73,995
2015 Mercedes-Benz S-Class For Sale
15 Great Deals out of 579 listings starting at $53,912
2014 Mercedes-Benz S-Class For Sale
12 Great Deals out of 521 listings starting at $44,995
2013 Mercedes-Benz S-Class For Sale
4 Great Deals out of 257 listings starting at $30,995