UPDATE
Ok so I got the car back together. I test drove it today and it works fine with no leaks from the heater core.But it does have some issues that I do not understand. The SRS light stays on, only heat comes out of the vents,Number 10 fuse blows out (The one that is connected to the tach, the passenger side rearview mirror,the outside temp gage.) At first I thought I connected the gage cluster wrong so I checked it and it seems to be alright.The always on heater air has me stumped as well. Does anyone have any insights?
UPDATE
Ok so I got the car back together. I test drove it today and it works fine with no leaks from the heater core.But it does have some issues that I do not understand. The SRS light stays on, only heat comes out of the vents,Number 10 fuse blows out (The one that is connected to the tach, the passenger side rearview mirror,the outside temp gage.) At first I thought I connected the gage cluster wrong so I checked it and it seems to be alright.The always on heater air has me stumped as well. Does anyone have any insights?
My guess and just that, a guess. You hooked up the Vac lines for the vent doors incorrectly, reversed maybe. I don't recall for sure how many there were, one pair or two. Since you didn't touch it, the Heater Control valve which is under the screen below the windshield wipers ( battery side ) should be OK or the same as it was before you started , but it is also controlled by vac. , so it might be holding open allowing hot coolant into the heater core. What I am getting at, the Vac lines under the dash might be also going to the heater valve. There might be a schematic in the online manual.
SRS light - no clue - You didn't take out the steering wheel, I don' t recall if you had to undo any wire connectors for that not removing the wheel but ...
Blowing fuses - I think it is impossible to plug in the wrong connector, I believe they were all different except the individual warning lights, mmmmm I wonder if you plugged the SRS light from something that could stay on,, brake maybe or low coolant?
Found the Vac hook up for the only lines you should have had to disconnect.
Online manual under Temp/climate control 83-020 sec "E".
Lower section behind the radio ash tray area. I was thinking there was 3 lines.
1. The upper module # 39 = Vac Element leg flaps = Middle Green is the description, I assume it's a medium green.
2. The lower module # 40 Fresh air/recirc = Here you have two lines. Middle Green/ yellow stripe goes on the Drivers side. Middle Green / Light blue on the passenger side.
Hope this helps.
Dan
Edit - Since my brain cells are mmmm getting on in years, I have learned to take a few Digital Pics of some items before disassembly. Even IF I remember the basic hookup a week later or so, it's does this line go over the top of this or under which helps with routing issues. Really helped in the end of the Head Gasket deal which took a few weeks with so many possibilities of routing and all the sensors in the sensor block. I wish I had of taken a few more pics but I had enough.. just.
Last edited by Logon_Bob : 08-17-2008 at 11:07 PM.
Google is amazing... :-) You probably didn't reconnect a connector.... The other common fault is the Ring Contacts in the steering wheel itself, but it was working and you didn't remove it... so..OK?
"The SRS light in the instrument cluster illuminates for about two seconds when the vehicle is started. This is a self-check of the SRS circuit. If a problem is found, the indicator light stays on and the SRS system is disabled.
The SRS impact sensor is mounted on the center tunnel of the body, behind the ashtray. The sensor electrically signals the SRS control module when a programmed deceleration threshold is reached. This signal is the basis for activation of the airbag(s). All the electrical contacts of the airbag system are gold plated to eliminate the possibility of corrosion and electrical resistance."
Thanks Dan.
The vacuum tubes were the problem apparently. I haven't tested the car myself but the wife took it for a test run and said things were a lot cooler.I may have to tweek it a little once I recharge the freon.
The SRS light remains on and I know I did not mess with the module on the center console behind the ashtray and the bulb is in position three in the cluster.#one is "check engine" two is empty and three is definitely SRS and it won't go out until I find the short.
Also, I am still stumped on number 10 fuse.
While poking about under the dash to the left of the steering column I did notice a connector that had no cable connected to it.Somewhere under there is a wire that needs to be plugged in but I'll be danged if I can find one.
The connectors are black and the ones facing the back of the car are female receptacles so I am looking to connect a male wire to it. Behind those connectors are male receivers and take female cables like the one attached to the outside temp gage.
I did take photos but apparently not enough details and not enough photos and not in the dark corners. I rely too much on memory.
These are little annoyances. I am just glad the car is functioning again and do not have to share my w124. Both cars are roadworthy to a certain extent and I enjoy both of them.Wife likes the "baby benz" best and is happy to be back behind the wheel.
Thanks again, Dan.
You're welcome. I looked at my one pic, didn't do that side.
Looking at Schematics and it's tough with lousy pics. I think that loose connector is what you're looking for.
Schematic: Part X28/5 Connector/ slip ring- Location is of course in the steering wheel at the Air Bag.
Next in line - Pt X28/4 connector/ Airbag Squib ( what ever a Squib is ) Location listed as left side. Pic shown PG 229 fig 6. To me this is right where you describe. It should be visible from below. If the wire is going towards the ashtray that's most likely it. It plugs in to a Bracket Holder like 3-4 inches left of the steering column just next to a round cross bar. The plug should be attached to this bracket aiming straight down. So, it appears there is no dangling missing wire, the matching conn. is held in this bracket. I will try a copy and paste and see how it comes out if at all.
ah, didn't work. Trying a Word Doc upload. Damn, too big and no clue how to shrink. I will try a PM to you.
Dan
Last edited by Logon_Bob : 08-19-2008 at 03:41 PM.
Well putting the vacuum lines aside for a while I decided to tackle the #10 fuse problem by disconnecting the cable of the outside temp gage from that dark area near the steering column thinking that I would sacrifice the temp gage to get back the tach and the remote passenger mirror button. And it worked, sorta. Number 10 fuse held, the tach and the right mirror button now function. But so does the temp gage! So now I have a dangling cable (male) and a connector without a cable.No they do not match. And I still have a SRS light always on problem. I suppose that's progress.
I'll get back to the vacuum line issue when I get a chance because I don't believe it's quite right yet and of course I can't have loose cables dangling under there without a purpose. It is just not tidy.
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