Quick easy question for 190E 2.3 owners
 

This should be an easy one for somebody. Can someone take a look at their 2.3 and tell me where the vacuum line goes from the Vacuum Thermoswitch in the head for the charcoal canister. One hose would obviously go to the Charcoal canister. Where is the hose out the other port in the switch getting it's vacuum from? Thanks.

If anybody is curious why I need to know. I have a 1985 230TE that was having issues getting full timing advance. Well after studying the hoses I realized that when this car was brought into the U.S. nearly 20 years ago they just T'd right into the vacuum line for the vacuum advance. So if you can picture it the charcoal canister is T'd into the vacuum line for the distributor advance. This is affecting the vacuum advance. The charcoal canister should actually go to a thermoswitch in the head and then on to a vacuum port somewhere. It is the somewhere I need to know.

Chuck

Can someone open there hood and answer this question? I would really appreciate it!

Chuck
1985 230TE 5speed

i'll check my 1988 190e when the sun comes up tomorrow and post.

I checked last night, but I'm not sure what you're talking about. Can you elaborate -- I'm trying... I really am.

Jeff Pierce

I will do my best to describe it. On the drivers side of the cylinder head at the front of the motor there is three temperature sensors. Two of them have wires going to them but one has vacuum hoses going to it. This is to purge the gas fumes from the charcoal canister. Obviously one hose goes to the canister. The question is about the other hose. The vacuum hose that goes to the engine. Where is it plugged into the intake manifold? Is it t'd into another vacuum line. If so where does that one run.

Chuck

Okay, that's what I was looking at. But the routing of the vacuum lines makes it difficult to see.
I'm at work now. I'll investigate further when I head home.

Jeff Pierce

I have a euro 88 230E I think its plugged into the intake manifold but the connection nipple is underneath the air intake, I can't describe it. I'll have to take a photo sometime this week for you sorry. There is this huge space under there and I believe the connection is to the right if your facing the engine. Sorry for the bad description i'm working on memory. If you can wait awhile I'll look.

my 1988 190e has two vac ports on the throttle body , left side, underneath the air flow assy. the rear one goes to the temp switch, the front one goes to the canister, to what looks like a check valve. hope this helps!