Hey everyone,

I've got my 420SEL here and the other day it was having some temperature issues.

At Idle w/ AC On, sitting for a while in a driveway it crept up to around 110C. The aux fan works.

Around town w/ac (about 35-40mph) it was around 90-100C

On freeway it was around 85C with ac on.

Not really sure about w/o AC. Haven't checked it yet.

My mechanic said that the fan wasn't moving as much air as it normally should. So maybe clutch?

Others have suggested the radiator.

Right now, I'm gonna replace the cap on the bottle (which is a COMPLETE pain to remove as it is right now) and the thermostat.

I'm not sure how old the radiator is, its made by "IMI Radiators." I've never heard of them, but it has a MB emblem on it and some codes. It LOOKS ok and the fins look clear of debris...

Anyone have any thoughts on the whole thing or the radiator. I was hoping someone knew more about the radiator...






If the cap/tstat don't make a difference..what should my next step be? Replace rad? Replace clutch? $288 (Behr rad) vs $150 (Behr) clutch?
[img]

__________________
Cruise Control not working? Send me PM or email (jamesdean59@gmail.com). I might be able to help out.
Check here for compatibility, diagnostics, and availability!

(4/11/2020: Hi Everyone! I am still taking orders and replying to emails/PMs/etc, I appreciate your patience in these crazy times. Stay safe and healthy!)


82 300SD 145k
89 420SEL 210k
89 560SEL 118k
90 300SE 262k RIP 5/25/2010
90 560SEL 154k
91 300D 2.5 Turbo. 241k
93 190E 3.0 235k
93 300E 195k