OBD port, where to plug it in?

1992 MERCEDES BENZ 500SL

78,000 MILES • 5.0L • V8 • 2WD • AUTOMATIC

KELLY NAPOTNIK

MEMBER
1 POST
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I am trying to get a reading from an OBD system but cannot find where to plug it in. I was also told that this model does not have the plug in for an OBD reader.

Jun 28, 2022 at 9:32 AM

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SQM

AUTOMOTIVE REPAIR CONTRIBUTOR
6,383 POSTS

Hello,

The OBD port for your vehicle is located under the hood on the passenger side, close to the firewall.
It will require specialty scan tools to retrieve codes.

I have attached diagrams below for your reference.

Let me know of any questions.
Thank you.

Images (Click to enlarge)

Jun 28, 2022 at 8:34 PM

JACOBANDNICKOLAS

AUTOMOTIVE REPAIR CONTRIBUTOR
110,190 POSTS

Hi,

The OBD2 systems were really introduced in 1995, so this vehicle won't have that type of data link connector.

I attached a pic below showing where the OBD1 connector is on your vehicle. Note, this system will not work if you have an OBD2 scan tool.

Let me know if this helps.

Take care,

Joe

See pic below.

Image (Click to enlarge)

Jun 28, 2022 at 8:40 PM