Mercedes-Benz Forum banner

1 - 11 of 11 Posts

·
Premium Member
1989 300SE, 1989 560 SEL and 1985 280SE Euro
Joined
·
392 Posts
Discussion Starter #1
I’m trying to get the cabin heater in the 1989 Euro SEC to operate. finally found the control unit and relay which is located behind the passenger false footwell area. What I discovered was that what I think is fuse assembly is missing, possibly removed when the car was Imported? Please take a look at the attached photo of The fuse (or relay?) receptacle and advise . I’m also including a photo of the webasto controller for reference.
Thank you all for any info and parts leads
 

Attachments

·
Registered
Too many to list
Joined
·
8,741 Posts
The wsebasto uses a small gas engine (like a lawnmower engine ) to run the auxiliary heater . If your car was imported Chances are this gas engine was removed entirely as it’s not smog legal . Do you have the small gas engine in your engine compartment , plumbed into your fuel lines ?
 

·
Premium Member
1989 300SE, 1989 560 SEL and 1985 280SE Euro
Joined
·
392 Posts
Discussion Starter #3
The wsebasto uses a small gas engine (like a lawnmower engine ) to run the auxiliary heater . If your car was imported Chances are this gas engine was removed entirely as it’s not smog legal . Do you have the small gas engine in your engine compartment , plumbed into your fuel lines ?
All intact and plumbed in!
the fueholder which appears to plug into a relay socket is missing
 

·
Registered
1986 560SEC (Totaled 5/11) 1985 500SEC EURO
Joined
·
173 Posts
Can you upload pics of the whole webasto heater system?

Sent from my SM-G955U using Tapatalk
 

·
Moderator
1991 500SEC sub 50K mi. 1987 560SEC Now 150K mi. 2018
Joined
·
4,290 Posts

·
Premium Member
1989 300SE, 1989 560 SEL and 1985 280SE Euro
Joined
·
392 Posts
Discussion Starter #6
Can you upload pics of the whole webasto heater system?

Sent from my SM-G955U using Tapatalk
36A0DE71-9FC6-4F68-8D59-C5046A1F7ABD.jpeg
B6B1DDC7-55E2-4F2F-9842-C2E03865AF2D.jpeg
C516694C-D952-4F63-BBD7-CA0F6E091C96.jpeg
7E97E757-E255-4371-BCDC-4340F364059E.jpeg
E85EBB3F-69F3-40C4-812E-62017F26B395.jpeg
08497DA6-9487-4780-8AFA-1DDCB62AAA98.jpeg
522FF110-972B-4FB0-A97B-6D9A1027D166.jpeg
3052A907-4528-43A7-92D8-89D214EAD666.jpeg
36A0DE71-9FC6-4F68-8D59-C5046A1F7ABD.jpeg C516694C-D952-4F63-BBD7-CA0F6E091C96.jpeg 7E97E757-E255-4371-BCDC-4340F364059E.jpeg E85EBB3F-69F3-40C4-812E-62017F26B395.jpeg 08497DA6-9487-4780-8AFA-1DDCB62AAA98.jpeg 522FF110-972B-4FB0-A97B-6D9A1027D166.jpeg 3052A907-4528-43A7-92D8-89D214EAD666.jpeg
Can you upload pics of the whole webasto heater system?

some new clues. I pinned out the 4 pins in the 6 pin socket. The two center pins are 12v hot. When 12v hot is applied to top left pin, the webasto controller clicks. To the right does nothing, the in dash controller doesn’t display anything. Interesting tho that the in dash controller illuminates with the rest Of the dash lights meaning that it’s connected at least partially, I do think that 4-pin socket with the correct fuse assembly or relay is the missing piece. I inserted a general purpose ”ice cube’ relay even tho it has 5 pins and got the same clicking of both that relay and the webasto controller...

Sent from my SM-G955U using Tapatalk
 

·
Premium Member
1989 300SE, 1989 560 SEL and 1985 280SE Euro
Joined
·
392 Posts
Discussion Starter #7

·
Moderator
1991 500SEC sub 50K mi. 1987 560SEC Now 150K mi. 2018
Joined
·
4,290 Posts
You probably already have reached out to the seller, but gosh... With the correct part number I'm thinkin' here.. Sharpen the focus of your search immensely. (y)

M
 

·
Registered
1988 Mercedes 500 sec
Joined
·
465 Posts
are these difficult to fit in a car that does not have this option and how exactly do they work
 
1 - 11 of 11 Posts
Top