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Hello, does anyone had ever lubricate his exhaust valves, long time ago somewhere i read someone did that with this spray if im not wrong lubricant
Hmmm, strange, I didn't see this thread pop up in the New Posts section so I missed it. I only saw this thread because you linked it from the oil dipstick pop out thread.
Oops I was going to attach the file to this thread but made a mistake and posted it in the other thread instead, oh well, here is the direct link to that post: https://mbworld.org/forums/c450-c43-...ml#post9130525
correct way is lubrication of exhaust flaps maybe? hahaha
anyway i think i found a way but will report once i try it
check where is the yellow circle below in the image you should see 3 wholes there you should apply the thermo lubricate wax or whatever is the name in english, if someone manage to try before me please post here updates
P.S. i want to do this as preventive maintenance like changing your engine oil but on longer intervals
harness waterproofing with RTV (high temp silicone)
Kritiyan, while you're helping prevent this flap from failing... you need to silicone the harness penetration into connector.
These wire seals are not waterproof... rain effectively enter module by capilarity.
Cali.. thanks for joining into this thread is really appreciated it, once i go under the car will check my flaps cables how isolated are they, if they're as in the pic above (i used it from another guy short video) will isolate it
on this topic a lot of flaps are reported to be failed in certain milages, friend of mine who have same year same car his flap is stop functioned as it should, not sure either if this is the issue or something else.. on top of that they're not cheap at all (300$ ish) per unit so x2...
will report here once i go under the car and will took some photos, so this thread might be useful for others as i don't find anywhere this to be discussed or anyone to pay attention until something is wrong with the flap
Cali.. thanks for joining into this thread is really appreciated it, once i go under the car will check my flaps cables how isolated are they, if they're as in the pic above (i used it from another guy short video) will isolate it
on this topic a lot of flaps are reported to be failed in certain milages, friend of mine who have same year same car his flap is stop functioned as it should, not sure either if this is the issue or something else.. on top of that they're not cheap at all (300$ ish) per unit so x2...
will report here once i go under the car and will took some photos, so this thread might be useful for others as i don't find anywhere this to be discussed or anyone to pay attention until something is wrong with the flap
yes, get down there and look at both sides of the connector plug for wet oxidation... (then clear scanner fault).
Then RTV every "sealed" connectors you see under your car near front/rear bumpers especially.
The MB. seals are no match for water capilarity.
Water gets into modules: game over! Can not clean oxidized soaked modules.
Preventive is the only way!!
yes, get down there and look at both sides of the connector plug for wet oxidation... (then clear scanner fault).
Then RTV every "sealed" connectors you see under your car near front/rear bumpers especially.
The MB. seals are no match for water capilarity.
Water gets into modules: game over! Can not clean oxidized soaked modules.
Preventive is the only way!!
def will check that out but why i should clear fault with scanner, you mean when i clean it might trigger fault or?
def will check that out but why i should clear fault with scanner, you mean when i clean it might trigger fault or?
yes, when you simply unplug it 90% chance it will register a fault regardless of "power being off"... its really only "low power mode", not "power off".
yes, when you simply unplug it 90% chance it will register a fault regardless of "power being off"... its really only "low power mode", not "power off".
i know from dyno graph test with faulty flap that the car produce 140hp (or something like that) less, so it's not nice at all..
there is the TPM module (pass. rear axle) also
and rear bumper side radars and harness connectors plus front bumper and engine area.
and the ISM priceless shifter (tranny side) its bottom connector can really use RTV.
These cars are temporarily "sealed" to dis-like water... water capilarity always wins.
Use high temp RTV engine-grade automotive sealant to fix that !!
Last edited by CaliBenzDriver; Apr 13, 2025 at 03:56 PM.
there is the TPM module (pass. rear axle) also
and rear bumper side radars and harness connectors plus front bumper and engine area.
and the ISM priceless shifter (tranny side) its bottom connector can really use RTV.
These cars are temporarily "sealed" to dis-like water... water capilarity always wins.
Use high temp RTV engine-grade automotive sealant to fix that !!
Time to wrap the entire vehicle's underbody Much easier than sealing each individual connector.
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Much easier than sealing each individual connector.
