DreamWeaver Posted September 24 Share Posted September 24 Greetings everyone, I have been experiencing intermittent high resistance issues in the driver's airbags on my 2004 W203 Coupe. Currently, it occurs around biweekly, however last week it happened every two days. It is my understanding that a new loom exists, which requires significant disassembly of the dashboard for installation. My plan is to inspect and clean the readily accessible airbag connections first. Prior to proceeding, I want to disconnect power from the SRS system while preferably keeping the battery attached for other functions. I want assistance on the placements of the fuses and relays, please. Quote Link to comment Share on other sites More sharing options...
PixelMaster Posted September 24 Share Posted September 24 Does the car manual not provide the locations of the fuses? I question if any relay is implicated. Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 Handbook has already been reviewed. It provides the locations of the fuseboxes, but lacks a fuse list Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 Discovered information on an unfamiliar website. Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 https://www.startmycar.com/gb/mercedes-benz/c-class/info/fusebox/2003#anchorfusebox1 Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 For the benefit of others, here is the PDF for the W203. Two files due to the excessive size of a single version. Quote Link to comment Share on other sites More sharing options...
WiseSage Posted September 24 Share Posted September 24 Is the list not printed on the lids of the fuse boxes? Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 I am uncertain but will verify tomorrow and inform you all. Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 I have examined the engine bay fuse box lid, and it lacks a fuse diagram—thank you, Mercedes, for your inadequacy. However, with the aforementioned website, I located the SRS fuses. Quote Link to comment Share on other sites More sharing options...
clk320x4 Posted September 24 Share Posted September 24 The loom modification is simple. There is no need to remove the dash. It will be one of the following: 1. The airbag 2. The contact spiral 3. The wiring modification Commence with the number three and proceed accordingly. Omit the key, and it will remain secure. Quote Link to comment Share on other sites More sharing options...
DreamWeaver Posted September 24 Author Share Posted September 24 I have removed the airbag and spiral components. All connections were cleaned and reassembled. Excessive work today prevents me from accessing the loom farther back, since it requires the removal of several components to lower the under-dash panel. The error was resolved without complications using my CR-Max diagnostic tool, leading me to conclude that it is an intermittent connection rather than a damaged wire at this stage. Quote Link to comment Share on other sites More sharing options...
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