2001 C240 Blowing Starter Fuse 52
Thread Starter
Newbie
Joined: Sep 2016
Posts: 11
Likes: 0
2001 C240
2001 C240 Blowing Starter Fuse 52
My 2001 C240 broke down due to not starting, and I had to pull it to safety. I did not realize that the starter fuse 52 had blown, and so I removed the starter and tested it, and it was OK, but running slow. I did not realize that it might have been the battery that had caused the initial trouble. I found out that fuse 52 was blown, and changed it, and it blew again and two others. I took the starter in for repairs, because the brushes were almost gone, and was also not sure if the solenoid had a short circuit. The starter returned from repairs with a new solenoid, but the car won't start. I tested it directly with the battery, and it still turned slow. The battery charge was low, and even when jump started. I then took the battery(original 2001 item) for testing, and they said that the cells were dead, with 11.99V&204A instead of 12V&800A. I also checked the front SAM module for corrosion and burns, but there was little copper corrosion and no burns. I am now waiting for a new battery and will take it from there. I suspect that The 20Amps fuse #52 blew due to overload on the solenoid when the rotor did not spin due to low battery. I will let you know if the car starts. I just hope that I did not damage more things by replacing blown fuses.
Thread Starter
Newbie
Joined: Sep 2016
Posts: 11
Likes: 0
2001 C240
Yes, it's true. Mercedes batteries are like fantasy, unbelievable stuff. I've just bought a non Mercedes battery but it did not work. I have returned it, and will now try another brand. I will also see if the starter cable from battery is corroded or not. Will keep you posted. I really want my car to start now, and it's been two weeks without it.
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Dying batteries cause a myriad of problems on these cars.
1st time I replaced I was having the battery checked pretty regularly at the auto parts store. New it's supposed to be like 950 CCA.
Mine was at ~650 when I started checking, when it got down to
400 I decided to change it after 6 year sof service. I put in an Autolite battery, which lasted 5 or so years, and most recently (yeah yeah yeah)
a Walmart battery. Seems to be working fine. This Jan. I'll have had this car 15 years.
Hard to believe.
1st time I replaced I was having the battery checked pretty regularly at the auto parts store. New it's supposed to be like 950 CCA.
Mine was at ~650 when I started checking, when it got down to
400 I decided to change it after 6 year sof service. I put in an Autolite battery, which lasted 5 or so years, and most recently (yeah yeah yeah)
a Walmart battery. Seems to be working fine. This Jan. I'll have had this car 15 years.
Hard to believe.
Thread Starter
Newbie
Joined: Sep 2016
Posts: 11
Likes: 0
2001 C240
Finally found the culprit. It was the starter battery cable. It was rotten very close to the starter's positive point. It caused fuse 52 to blow all the time, because of a loose connection (where it was rotten). The alternator cable was also rotten closer to the starter's positive point. I am now looking for suitable connector so that I can reconnect both cables, and then install the starter. I will get back to you soon, and hopefully there is no other fault.
Trending Topics
Thread Starter
Newbie
Joined: Sep 2016
Posts: 11
Likes: 0
2001 C240
Finally found the culprit. It was the starter battery cable. It was rotten very close to the starter's positive point. It caused fuse 52 to blow all the time, because of a loose connection (where it was rotten). The alternator cable was also rotten closer to the starter's positive point. I am now looking for suitable connector so that I can reconnect both cables, and then install the starter. I will get back to you soon, and hopefully there is no other fault.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 192
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Fuse 52 should be elevated from 15 to 20 amps as per factory bulletin.
Todd, my old C240 battery is 13 years old & still passes a load test.
Todd, my old C240 battery is 13 years old & still passes a load test.
MBWorld Fanatic!
Joined: Jun 2002
Posts: 7,263
Likes: 169
From: So. Oregon Coast
C230 Sport Coup + 2006 W164 ML350 + 99 Ford Escort RIP
Slumming over here in the 203 forum?
No new vehicles since the CLK?
13 years on a battery?
Hey look what I came across on ebay?
http://www.ebay.com/itm/MERCEDES-OEM...xXggmY&vxp=mtr
Last edited by C230 Sport Coup; Oct 7, 2016 at 02:41 PM.
Currently Active Users Viewing This Thread: 2 (0 members and 2 guests)
