E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

diagnostic connectors

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Old Oct 19, 2005 | 08:25 AM
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things with and without wheels
diagnostic connectors

Why does my 01 w210 have two diagnostic connectors.
there is a round diagnostic connector in the engine compartment's fuse box ,
and there is a standard obd II connector under the dash driver side.
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Old Oct 19, 2005 | 12:31 PM
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From: Jacksonville Florida
209/W210 Estate /W211 modded by MBENZNL
The Late W210s have two posts..The Round one at the fuse box will work with the OLD Hand held tester..The Star will work on both with adapters into the Under dash OBD2 port
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Old Oct 19, 2005 | 01:24 PM
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Which one would Auto Zone plug into to retrieve codes?
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Old Oct 19, 2005 | 02:46 PM
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1967 Morris Cooper "S", 1983 911SC, 1997 Toyota Tacoma, 1999 HD FXSTB, 1998 C43
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They'll use the OBDII receptacle since it's generic.. to answer your question the one under the steering wheel.
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Old Oct 19, 2005 | 04:03 PM
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thanks guys
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Old Oct 22, 2005 | 12:48 PM
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Another connector question?

What is the large multi-pin connector in the trunk for? It looks like the old RS-232 connectors on the back of a PC. I thought it might be a diagnostic port.
1999 E-300 Diesel.
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