Mercedes-Benz Forum banner

1 - 20 of 24 Posts

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #1
I just picked up my first vintage Mercedes. Over all, I consider the car a survivor. It shows some rust, the paint still shines from a distance and it runs. My intention is to put antique plates on it and drive it occasionally. It will not be restored. I
would like to replace the wood on the dash eventually, but for now I'm going to work on the mechanics to get it road worthy. The alternator belt and AC belts are missing. I can find the AC belt and power steering belt, but I cannot find the alternator belt. Does anyone have a diagram for the belt routing? The double pulleys on the alternator and AC compressor are confusing me.

Since this is my first post, it will not allow me to post pictures..

Thanks, Lance
 

·
Registered
68 250S, 91 300se, 98 SL500, 450SEL 6.9, 14 CLS550 Past MB's; 300SD, 300E, 300TE, 190E, ML420
Joined
·
4,206 Posts
Nice looking car. There are plenty of posts on refinishing your wood you can search for.

The alternator belt should just go from the crank pulley to the alt. There is an adjusting bolt just above the alt.

Maybe a photo of the front of your engine showing what's there?

The brown cloth trim around the door openings there is a person on ebay.de that sells it.

Change all the fluids including brakes, antifreeze etc.
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #4
I ordered a Haynes manual yesterday. Hopefully it will give some insight on the belts.
 

·
Registered
1973 w114 280, m110 engine
Joined
·
442 Posts
Haynes makes terrible manuals. Half the info in mine about the 1973 280 i have is wrong. Find mercedes manuals if possible.
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #6
The Haynes manual is definitely not the best, but it was cheap on Rock Auto.
Do you have any pictures of the belts on your 280? I have a couple on order that should be here tomorrow. Are there 2 alternator and 2 air conditioner belts or just 1 each?
 

·
Registered
Joined
·
130 Posts
Lance, Great looking W108!

I agree to get the MB manuals for your car. I have them for my 4.5. I happen to also have the Chilton manual which includes the six-cylinder. Not much in there other than this:
2612789
2612790
 

·
Registered
Joined
·
130 Posts
I think this is what you're looking for from my factory Technical Data Passenger Cars data guide. Your engine is model is M 130.

2612791
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #9
Thank you so much! That diagram answers my questions. There are supposed to be 2 different size belts running the alternator!
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #11
Napa was able to locate the correct belts. It now has a working alternator and running on fresh fuel from the tank.
The ballast resistor for the coil opened up, but I jumped around it to get it running.
 

·
Registered
1970 280 SE 2.8L 1971 280 SE 2.8L 2000 ML430 2000 C230 sport 2015 GLK350
Joined
·
87 Posts
Lance,
You are in for a treat once you get the car sorted out. Keep pushing for correct parts and drive the car as often as practical. The car's running consistency will improve with use if everything is setup properly. I have a 1970 280 SE that I drive every day.
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #13
The belts are all installed, the alternator is charging. Still buffing and polishing the original paint.
I can't figure out all the switches in the dashboard. I can get the blower to come on with the AC controls, but can't get heat out of any of the vents or defrost.
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #14
I did find an owners manual on this site. I need to troubleshoot the fan switch for the heater because it doesn't work. The air conditioning blower works fine.
 

·
Registered
68 250S, 91 300se, 98 SL500, 450SEL 6.9, 14 CLS550 Past MB's; 300SD, 300E, 300TE, 190E, ML420
Joined
·
4,206 Posts
The heater core valves get stuck over time. search the forum lots of info on fixing. You probably need to extract the center heater control levers and see what's going on in there. It's possible your heater fan is dead. Then you will be the lucky winner of @20 hours work to extract it and fix. o_O The std joke is MB sent the heater box down the assembly line hanging on a string and built the car around it.
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #16
Thanks for the inspiration! Didn't even look at the heater yet, but I cannot figure out what the switch next to the headlight switch is for. See picture. It lights up yellow when I pull it, I just don't know what it controls.
2615592
 

·
Premium Member
1967 250 SL, 1965 300SE lang
Joined
·
3,018 Posts
Switch with white dot is rear window defroster.
 

·
Registered
1971 280 S
Joined
·
15 Posts
Discussion Starter #19
What is the switch on the left hand side above the vent? My wood is so bad there, I went to push the switch and it fell inside the dash.
 
1 - 20 of 24 Posts
Top