Lubrication for throttle linkage
 

What do you folks use for lubricating your throttle linkage? I have always used ATF.

MBZ OE

Yup, just a drop of ATF fluid is good. I'm lazy so I switched to a HD silicone spray which also works well.

No grease!

I agree with Bud, no grease. It makes the linkage sticky so the car will idle poorly, the cruise may stick and the trans pressure cable might not function right.

Interesting...
What points should I lubricate in my 190E 2.3 throotle? Do I have to remove the airbox?
It seems to be somewhat sticky and the idle is not smooth, perhaps this can help

Thanks

Interesting...
What points should I lubricate in my 190E 2.3 throotle? Do I have to remove the airbox?
It seems to be somewhat sticky and the idle is not smooth, perhaps this can help

Thanks

Yes, you need to remove the air filter (at least you do on the M103 engines).

Then you need to clean and lube the ball and socket connections in the throttle linkage and the linkage to the transmission.

The best way to do it if you haven't been maintaining it in the past is to carefully seperate the socket from the ball and clean any grease or dirt from them.

Then use a small screwdriver and dip it into a container of ATF fluid and put a drop on each ball before you snap them back together again.

You could also get a can of HD silicone spray and spray the ball and socket. Once you've cleaned them you can subsequently just spray the connections w/o seperating the ball and socket.

What I do is service the linkage when I do an oil change since I have to take off the air filter to get to the oil filter on my 300E.

Hey Bud. What brand of HD silicone spray do you use for lube?

Just something I picked up at Aces Hardware. I don't think it matters.

BTW, HD silicone spray works wonders in helping you get sparkplug boots off plugs. When you have the plug wire off, just spray inside the boot and let it drain for a second. From then on, you can just pull it off with your fingers.

The reason I asked is because I have heard many times that WD 40 is too harsh and eats away at the rubber or seals. I guess it should be just a silicone lube without the penetrant additives.

Just use a Heavy Duty silicon spray. I haven't used WD-40 for years. There are two things I never let near my cars....tap water and WD-40:D

What is HD silicone spray??And what it is used for???Is it anti-corrosion spray??

It's a lubricant. I use it to lubricate the ball and socket throttle linkage, sparkplug wire boots, antenna mast, etc.

What are their brand names??main constituent??So i will look for it in our local market(middle east)

I am afraid I am lost.
I was thinking that the throotle linkage was the small lever where the throotle cable ends, at the right of the fuel distributor (looking from the front in the 190E 2.3).
Are you talking about a different thing? is it applicable to both manual and automatic gearboxes?

Thanks

I'm not familiar with the 2.3. The six cylinder M102 and M103 engines as well as the diesel engines of that era used ball and socket connections at the end of the rods and cables that the throttle cable controlled. For example, one cable goes to the automatic transmission. A rod connects the cruise control on the diesels, one rod goes to the throttle plate on the six cylinder engines, etc.

These ball and socket connections are what I clean and lubricate.