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#1
02-03-2008, 11:42 AM
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sl 600 wiring harness
I have a 92 sl 600 that needs a new wiring harness. Has anyone ever put one of these in? Looks pretty straight foreward until the harness sends four wires through the firewall. It looks like I will have to take out the entire interior dash to get to these wires. Is this so. I have peeled the wires back and they are really bad going to the left mass flow air meter but look ok everywhere else. Can I splice these wires without replacing the whole harness. To do so I will have to cut one end off a $2000.00 harness. Would this be stupid or should I try and replace the whole harness?Any help would be appreciated. Also I have two new throttle bodies and a new computer. If I get the harness fixed do You forsee anything else I will need to do. Thanks, Todd
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#2
02-03-2008, 05:33 PM
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Quote:
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1967 250 S 1967 280SE 1968 250S 1971 280 SE 1973 220 1974 280 S 1975 450 SEL 1976 220 D 1979 300SD 1983 300 SD 1985 230 TE euro 1986 280SL 1986 500 SEL euro 1986 190E 2.3 1990 300 SE 2003 C230 K 2004 C230 K 1987 560SEL 1987 300SDL now in canada 2005 C230 1998 C43 AMG Sold to DON 1993 190E 2.6 300TD Former daily driver Totaled current: R320 CDI Ram 2500 Cummins
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#4
02-07-2008, 08:12 PM
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you can replace the airmass sensor harnesses seperate, i just dont remember the part number, you will need 2.
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1967 250 S 1967 280SE 1968 250S 1971 280 SE 1973 220 1974 280 S 1975 450 SEL 1976 220 D 1979 300SD 1983 300 SD 1985 230 TE euro 1986 280SL 1986 500 SEL euro 1986 190E 2.3 1990 300 SE 2003 C230 K 2004 C230 K 1987 560SEL 1987 300SDL now in canada 2005 C230 1998 C43 AMG Sold to DON 1993 190E 2.6 300TD Former daily driver Totaled current: R320 CDI Ram 2500 Cummins
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#5
02-12-2008, 03:50 PM
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CARSON 357, wENT TO MERCEDES AND ACCORDING TO THEM THERE IS NO SEPERATE HARNESS OR SPLICE AVALIABLE FOR THE MASS AIR FLOW SENSOR. iF YOU COULD COME UP WITH A PART NUMBER THAT MIGHT HELP THEM FIND IT.aLSO DO YOU HAVE ANY IDEA HOW TO GET THE INTERIOR OUT ON THE PASSENGER SIDE WHERE THE AIRBAG IS?tHANKS, TODD
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#6
12-15-2010, 03:42 PM
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The ETA have the defective wires soldered to the internal board. So, when the wires fail (they ALL do due to the famous Merceder Wire haerness defect), you have to either spend $12,000 for a new set of throttle bodies or have someone rebuild them. learn more about this dangerous safety defect at http://www.mercedesdefects.com
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#7
12-16-2010, 03:19 PM
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Replacement Wiring Harnesses
I do not have an SL600, but I do have an SL500 and I have replaced three different wiring harnesses myself and I took off the ETA and sent it to BBA Reman and had them replace the wiring in the unit. I haven't had any problems since. In my opinion, attempting to "cut and splice" wiring is foolish because most of the wiring is going to be brittle and even the hard plastic connectors can disentegrate as they did on my SL.
My advice; check online for the main wiring harnesses, these will be the most expensive. I don't have my information at hand, but my source for the OEM main harness is in Ann Arbor Michigan (I can try to find it for you) and it's about half the cost of the dealer. Fastlane may be able to obtain this for you as well and their pricing will be less than dealer too. I would not be surprised that you would need all three plus the ETA. I haven't had any problems with the BBA Reman unit and it came with a lifetime warranty. Possibly a more respected reman company, Beckmann, is located in North Carolina but it is nearly three times the cost. Some of this project is do-it-yourself, if you think its beyond your ability, check Craigslist under services and depending where you live, you can find ASE certified MBZ mechanics who work "off" the clock, on the side @$40 per hour and not @$100. I have been very lucky to have such help when needed here in Cleveland. Good Luck, Steve
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