M103 Rough idle and vacuum leak - Page 15 - Mercedes-Benz Forum
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post #141 of 174 (permalink) Old 04-19-2018, 02:32 AM
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Yes i understand , and knock taken .
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post #142 of 174 (permalink) Old 04-19-2018, 02:45 PM Thread Starter
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Just to make sure we're on the same page before I hit the junk yard, the circled plug in the attached picture is the CPS coaxial correct? And the inner pin each the outer cylinder each count as a separate terminal towards that 10? So pin 31 and this outer cylindrical terminal in the CPS plug connector should be the only combination of terminals with connection, but how low of resistance is considered full continuity? When you say the mounting surface, that is the surface that will be in contact with the car correct? Will any heat sink paste do?
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post #143 of 174 (permalink) Old 04-20-2018, 12:07 AM
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... the circled plug in the attached picture is the CPS coaxial correct? And the inner pin each the outer cylinder each count as a separate terminal towards that 10? So pin 31 and this outer cylindrical terminal in the CPS plug connector should be the only combination of terminals with connection, but how low of resistance is considered full continuity? ...
That‘s all correct. The resistance between pin 31 and this outer cylindrical terminal should be below 1 Ω.

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... When you say the mounting surface, that is the surface that will be in contact with the car correct? Will any heat sink paste do?
Correct. You could, for instance, use heat sink paste that‘s used for CPU coolers in computers.
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post #144 of 174 (permalink) Old 05-03-2018, 01:38 PM Thread Starter
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I'm starting to exhaust the junkyards near me with no luck yet. How similar do the part numbers need to be? If I purchase one from eBay is there any way to tell if it is fully functional other than asking for all the resistances?
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post #145 of 174 (permalink) Old 05-04-2018, 03:43 AM
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... How similar do the part numbers need to be? ...
Should be the same part number.

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... If I purchase one from eBay is there any way to tell if it is fully functional other than asking for all the resistances?
Not really.
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post #146 of 174 (permalink) Old 05-04-2018, 08:41 AM Thread Starter
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I see a lot of eBay posts stating a similar part number is interchangeable. Usually 00(4/5/6) 545 XX32 or something along those lines. Is this not entirely true?
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post #147 of 174 (permalink) Old 05-04-2018, 11:04 AM
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I‘m not sure. There might be country version related differences. What‘s the number of yours?
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post #148 of 174 (permalink) Old 05-04-2018, 10:49 PM Thread Starter
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006 545 7632
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post #149 of 174 (permalink) Old 05-05-2018, 12:02 AM
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006 545 7632
If you go to ebay.com and type in “006 545 76 32“ (including quotation marks and blancs) you get this:

https://www.ebay.com/sch/i.html?_odk...32%22&_sacat=0

If you type in 0065457632 you get this:

https://www.ebay.com/sch/i.html?_odk...57632&_sacat=0

However, before you buy another EZL, I suggest to repeat the resistance measurements from post 135 (with all plugs disconnected) between terminal 2 and all other 9 terminals (including both coaxial CPS terminals) on your EZL in both directions! ... (once with the meter‘s “Ω“ lead connected to terminal 2 and once with the “COM“ lead connected to terminal 2).

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post #150 of 174 (permalink) Old 07-09-2018, 10:05 PM Thread Starter
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I've redone the tests and attached an image with the results.
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