C32 Fuel Sender Problem. Help?
Thread Starter
Junior Member
Joined: Mar 2008
Posts: 28
Likes: 0
C32 AMG
C32 Fuel Sender Problem. Help?
I'm having what I think is a fuel sender problem (based on my research) with my C32. I noticed while driving today that my fuel level was dropping fast. I thought maybe it was a leveling problem so I filled up and it reads 3/4-full. Took only 8 gallons of gas. I found the following DIY and decided to get the part numbers and look for prices:
http://www.installuniversity.com/mb/w203/w203/fp.html
I looked at my '04 C32 and here's what I found in the car:
A203 470 1741 -left- Marwal Systems 0975 303 9902
A203 470 2494 - right- Marwal Systems 0975 203 9906
Upon a parts search I was appalled.
It seems the left unit is $450 and the right is over $1,100
It seems the units are normally about $500-$600 for the pair but these are specific to the C32...
I couldn't find anyone complaining about that on here, which doesn't seem possible given the outrageous cost, so I'm hoping that you guys may have already worked out a better solution...
Any help/advice? Has anyone encountered this problem on a C32?
http://www.installuniversity.com/mb/w203/w203/fp.html
I looked at my '04 C32 and here's what I found in the car:
A203 470 1741 -left- Marwal Systems 0975 303 9902
A203 470 2494 - right- Marwal Systems 0975 203 9906
Upon a parts search I was appalled.
It seems the left unit is $450 and the right is over $1,100
It seems the units are normally about $500-$600 for the pair but these are specific to the C32...
I couldn't find anyone complaining about that on here, which doesn't seem possible given the outrageous cost, so I'm hoping that you guys may have already worked out a better solution...
Any help/advice? Has anyone encountered this problem on a C32?
Member
Joined: Aug 2010
Posts: 167
Likes: 1
From: Elizabethton, TN
A teal Vespa with tassles and glitter. You know you're jealous.
I just actually went through this myself Christmas weekend. My tank would read half full even when it should be empty. I used the same link you posted. I got my tool at sears.com A lot cheaper!!! Below is the name and part number.
Lock Technology LTI940 Gas Tank Fuel Pump Removal Tool
Sold By: UnbeatableSale.com, Inc.
SPM222404880
I opened my passenger side fuel tank first since I didnt have to disconnect the fuel lines etc. When I opened it ( recommend that the tanks are NOT full, makes for a headache) I had to drain the tank, upon draining it my brother and I noticed the fuel level float was stuck in the air, it wasnt sitting on the surface of the fuel. My brother touched it and it fell down. We messed with it some to see if it was hanging up and found it was so we tweaked it ever so slightly and tried again and had no issue. So we put everything back together and filled it back up. I also added some fuel system cleaner and ran it through. The first tank was sketchy but after that it seems to be accurate but I can only get it to read 7/8 of a tank and not actually full. I need to replace my sensor unit once I get a chance to break away from work. I just made a 1200 mile road trip and it seemed to read pretty accurately in regards to the needle recording the amount left vs range left on LCD display.
The fuel pump assembly itself looks to be a very interesting task to take on, one which I will be tackling hopefully in the next few weeks.
As for the price of the sensor look on google, I found some far cheaper than that and they were OEM parts not chinese knockoffs. I will try to find the site.
***As a side note to clarify the "tweaking" of the float arm, my brother and I are both mechanically inclined, I myself am a mechanical/PLC engineer and he is a UTI trained mechanic as well as a USAF F-16 crew chief, it was to see if we could stop it from hanging up. So you are more than welcome to try this if you want, just wanted to clarify it wasn't weekend backyard mechanics doing this.***
Andrew
Lock Technology LTI940 Gas Tank Fuel Pump Removal Tool
Sold By: UnbeatableSale.com, Inc.
SPM222404880
I opened my passenger side fuel tank first since I didnt have to disconnect the fuel lines etc. When I opened it ( recommend that the tanks are NOT full, makes for a headache) I had to drain the tank, upon draining it my brother and I noticed the fuel level float was stuck in the air, it wasnt sitting on the surface of the fuel. My brother touched it and it fell down. We messed with it some to see if it was hanging up and found it was so we tweaked it ever so slightly and tried again and had no issue. So we put everything back together and filled it back up. I also added some fuel system cleaner and ran it through. The first tank was sketchy but after that it seems to be accurate but I can only get it to read 7/8 of a tank and not actually full. I need to replace my sensor unit once I get a chance to break away from work. I just made a 1200 mile road trip and it seemed to read pretty accurately in regards to the needle recording the amount left vs range left on LCD display.
The fuel pump assembly itself looks to be a very interesting task to take on, one which I will be tackling hopefully in the next few weeks.
As for the price of the sensor look on google, I found some far cheaper than that and they were OEM parts not chinese knockoffs. I will try to find the site.
***As a side note to clarify the "tweaking" of the float arm, my brother and I are both mechanically inclined, I myself am a mechanical/PLC engineer and he is a UTI trained mechanic as well as a USAF F-16 crew chief, it was to see if we could stop it from hanging up. So you are more than welcome to try this if you want, just wanted to clarify it wasn't weekend backyard mechanics doing this.***
Andrew
Thread Starter
Junior Member
Joined: Mar 2008
Posts: 28
Likes: 0
C32 AMG
Thanks for the response. Mine is back to acting normally for now. Perhaps it too was a stuck float. (something already in my mind before your post). It's funny you mentioned your occupations in the disclaimer. I'm an industrial/systems engineer and I would likely get my brother who is also and IE/Professor and good friend a network systems architect to help on the project, lol.
Member
Joined: Aug 2010
Posts: 167
Likes: 1
From: Elizabethton, TN
A teal Vespa with tassles and glitter. You know you're jealous.
Haha. Sometimes it helps to have that extra set of eyes and hands, especially on this. It was my brother who noticed the float hanging up and we tweaked it because it was hitting the fuel line.
I figured I would mention my occupation just to add peace of mind for some people, didn't want them to assume that we just started bending stuff on a whim.
I figured I would mention my occupation just to add peace of mind for some people, didn't want them to assume that we just started bending stuff on a whim.
Super Member
Joined: May 2010
Posts: 570
Likes: 2
From: Sherman Oaks, California
09 C63 AMG, 05 C55 AMG
My car did this and the driver side float was going bad. The connecton for the plug to the unit, it was not getting a good connection, and would do this intermittently
Trending Topics
MB World Stories
The Best of Mercedes & AMG
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
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
