Check Engine Lights
Thread Starter
Newbie
Joined: Jan 2021
Posts: 10
Likes: 0
CLK 320 (1999 convertible)
Check Engine Lights
hi
my check engine lights lit up and on my way home the car stopped.
so here are the things that i know:
transmission fluid leaks massively (once it's filled up it kinda drips only a few drops a night. like a matchbox size leak)
radiator leaking from the top so not really an emergency however the car heats up to 90-95C
when the transmission fluid is low the car shifts oddly, spinning up etc and since the engine light is on, it spins up and i have to remove my foot from gas and push it again to make it shift up.
here is what i found using google. (i'm a noob so there's that said)
crankshaft sensor, MAF filter, shifting solenoids, and transmission oil pan gasket and filter.
this MAY can solve my problems. what are your thoughts?
i mean i either spend 3-400 on it maybe 5, and use it for another few months, or sell it as is for what? 1000??
(no one came to check it for 1800 they're all analphabets i guess not one "still available" people have read the description of the ad...smh)
my check engine lights lit up and on my way home the car stopped.
so here are the things that i know:
transmission fluid leaks massively (once it's filled up it kinda drips only a few drops a night. like a matchbox size leak)
radiator leaking from the top so not really an emergency however the car heats up to 90-95C
when the transmission fluid is low the car shifts oddly, spinning up etc and since the engine light is on, it spins up and i have to remove my foot from gas and push it again to make it shift up.
here is what i found using google. (i'm a noob so there's that said)
crankshaft sensor, MAF filter, shifting solenoids, and transmission oil pan gasket and filter.
this MAY can solve my problems. what are your thoughts?
i mean i either spend 3-400 on it maybe 5, and use it for another few months, or sell it as is for what? 1000??
(no one came to check it for 1800 they're all analphabets i guess not one "still available" people have read the description of the ad...smh)
Senior Member
Joined: Feb 2020
Posts: 331
Likes: 40
1998 CLK 320
Engine temps up to 100* C is normal. A new radiator is pretty cheap (for MB) and pretty easy to do. Your transmission however, needs some serious work.
What year/model/color is the car?
What year/model/color is the car?
Last edited by convicted; May 2, 2021 at 10:30 PM.
Member
Joined: Dec 2018
Posts: 107
Likes: 13
From: Bonny Scotland
CLK 230 Convertible 1999
Hi, I've never changed a radiator but I have solved a malfunctioning Transmission.
Mercedes Automatic Gearboxes are pretty well bomb proof. If your tranny is leaking then it will not work unless you keep the automatic fluid topped up all the time. Buy a cheap after market automatic dip stick to help ( about £10 on ebay). My transmission works well when my dip stick says it's a bit overfull. I tried draining out a bit to make it look right, but it kept on dropping out of gear so I put more fluid back in and it works great now.
Okay, find out where the leak is coming from. If it is coming from the sump gasket, then replace the sump gasket and while you're there you might as well replace the filter and the transmission fluid. There are tons of videos on the 722.6 gearbox on youtube to help. https://www.ebay.co.uk/itm/202389897...QAAOSw52tbYssw . There's no need to use Mercedes Fluid, there are plenty of brands that will do the job well. I snapped the bolts holding the sump in place and had to get a mechanic to drill them out, so take care.
My leak came from the pipe between the transmission and the cooler, it was a pain getting hold of the right bits (especially the rigid pipes) but actually installing the pipe was not too hard.
Again there's plenty of advice on youtube.
Mercedes Automatic Gearboxes are pretty well bomb proof. If your tranny is leaking then it will not work unless you keep the automatic fluid topped up all the time. Buy a cheap after market automatic dip stick to help ( about £10 on ebay). My transmission works well when my dip stick says it's a bit overfull. I tried draining out a bit to make it look right, but it kept on dropping out of gear so I put more fluid back in and it works great now.
Okay, find out where the leak is coming from. If it is coming from the sump gasket, then replace the sump gasket and while you're there you might as well replace the filter and the transmission fluid. There are tons of videos on the 722.6 gearbox on youtube to help. https://www.ebay.co.uk/itm/202389897...QAAOSw52tbYssw . There's no need to use Mercedes Fluid, there are plenty of brands that will do the job well. I snapped the bolts holding the sump in place and had to get a mechanic to drill them out, so take care.
My leak came from the pipe between the transmission and the cooler, it was a pain getting hold of the right bits (especially the rigid pipes) but actually installing the pipe was not too hard.
Again there's plenty of advice on youtube.
