ID of misc trunk items

[Blankets]

I found this 3/8” drive extended reach 3mm socket inside the factory tool roll, any idea why or
what this would be used for?


Also found a small ABS? Plastic rod similar to a plastic welding rod but I have never seen one this size.


And lastly I am wondering what this cable is for?

 

[Jlaa]

I found this 3/8” drive extended reach 3mm socket inside the factory tool roll, any idea why or
what this would be used for?
Also found a small ABS? Plastic rod similar to a plastic welding rod but I have never seen one this size.
And lastly I am wondering what this cable is for?View attachment 198505View attachment 198506View attachment 198507View attachment 198508View attachment 198509

I believe the connector is for the phone module in the trunk.

 

[gerryvz]

Those tools/extensions are definitely non-stock, and it's hard to say what they would have been for.

The @Jlaa is correct - that is a mobular phone connector for the gear that was probably installed aftermarket in the car's tunk.

 

[daantjie]

3mm tool is used for KJET mixture adjustments on older models, most likely this is what the 3/8 drive was used for, maybe not on this model but older perhaps.

 

[gsxr]

3mm tool is used for KJET mixture adjustments on older models, most likely this is what the 3/8 drive was used for, maybe not on this model but older perhaps.

I did not know this! All years of E500E have LH-SFI with fully electronic injection, with zero adjustments possible.

KE-Jet's last gasp was about 1991-92 on select models only, replaced by LH sequential port injection on V8's, and HFM sequential port injection on most 4-6 cyl engines.

 

[gerryvz]

For future reference re: KE-Jet mixture adjustment:

Yes, a 3mm hex key (long stem) is inserted down into the vertical tower atop the fuel metering unit, between the air intake and the fuel distributor. US cars had a ball-bearing inserted into this tower so that folks couldn't mess around with it. 30+ years on, most US cars have had this ball-bearing removed by zealous techs who think that adjusting the mixture is the answer to all running ills.

When inserting a key into this adjustment screw, DO NOT PRESS DOWN or it will mess up the sensitive hardware inside the mixture adjustment. Adjustment should be in 1/8 of a turn increments, right to richen the mixture, left to lean it out.

In fact, honestly, the mixture adjustment really should ALMOST NEVER be needed. Adjusting mixture is a major Band-Aid to other ills with the KE-Jet system, such as fuel pressure between the upper and lower halves of the fuel distributor being out of sync.

I would only ever adjust the mixture as a very very last resort, and that only after a thorough diagnosis of the KE-Jet system by measuring fuel pressure on both halves of the system, adjusting EHA (if needed), and so forth. If a tech says that a simple mixture adjustment is needed with this 3mm hex key, they do not know what they are talking about, and you should run for the hills to someone who knows how to actually diagnose and work on these systems.

You will only see KE-Jet last used on 1991 W126 models (M103 and M116/M117), and 1991-1992 R129 300SL (early M104) and 500SL (M119.96x) models.

 

[TerryA]

3mm tool is used for KJET mixture adjustments on older models, most likely this is what the 3/8 drive was used for, maybe not on this model but older perhaps.

I think that my Smog Man used that 3mm when he was adjusting the fuel distributor on my Euro 500SL. He would tweak down the fuel to get it to pass smog.