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hi
first off, what a helpful site
my 2000 e430 has what sounds like lifter noise. after calling the mb dealer, I was told there are no oil guides on that particular engine.(only on the older models) engine is silent on start up, but gets louder as engine gets warmed up. seems to be coming from the front top of the engine. any help greatly appreciated. also where can I buy auto rx engine cleaner thanks

 

[E430SportMB]

I was told there are no oil guides too on our engine. I too have a 2k e430 but the ticking noise happens first and lessens after engine warms up. I believe it's the valves that needs adjustment . Sorry, no help.

 

[rennwerkes]

I was told there are no oil guides too on our engine. I too have a 2k e430 but the ticking noise happens first and lessens after engine warms up. I believe it's the valves that needs adjustment . Sorry, no help.

Usually the "ticking" noise may be an indication that some of the lifters are dirty or not getting adequate lubrication on start up.
AutoRx seems to help in certain situations.
I know some folks think it's snake oil but I've seen too many times where it actually made a difference.
My buddy's BMW had a fairly loud tick. Finally got him to use AutoRx and if I'm not mistaken the tick has gone away.
By the way, no affiliation what so ever with AutoRx.
Also, I don't think you can adjust hydraulic valves.

 

[fabbrisd1]

Auto RX

The oil galleys/passages in the head are quite narrow/constrictive.

MB recommends Mobil 1 0W-40 for (2) reasons; the low vsocisty pumps up to pressure right away, and this formula has a special exception for added phosphorous which is a anti-sludge component.

Quite common, since the "European forumal" Mobil 1 is pricey, dealers/independents/owners go off spec, which can lead to sludging or varnishing

You buy Auto-RX direct:

Auto-Rx Engine Cleaner

Follow the applircation instructions - which will be counter-intuitive because you use dino/non-synthetic oil with one oil change with the Auto-RX additive. The phosphorous in Mobil 1 0W-40 will counteract the cleaning agents in Auto-RX.

Since the din0/non-synthetic with Auto-RX is actually a cleaning cycle, no harm done, you are "washing" or "flushing" the engine - plus any decent dino oil is cheap, so helps counter balance the cost of the additive.

As comapred to a tear down and head cleaning - sure, I would give Auto-RX a go.

Helped (2) friends of mine, exact situation they both bought used MB's, both turned out had prior owner's with the same indie who used non-spec. Both are now happy..

 

[rennwerkes]

Yup, you use dino oil but it's in there for such a short time (1,500 miles) that there should be minimal breakdown of the oil so probably no sludge or varnishing problems.

 

[C_R]

This is normal. Its the MOT. Do a search for this. Does the noise go away after the engine has warmed up completely?

 

[E430SportMB]

breeze,

Tell me. How much milage you have and try changing gas stations. I believe i have to change gas stations on mine. It's a chevron but in a questionable neighborhood. They have the cheapest supreme gas in our area.

 

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thanks for all the help!
first , the lifter noise doesnt go away after the car is warmed up, but actually becomes more distinct. car has close to 140k mi and I just got the car. it was one owner,(a fairly well known sports figure) looks like new, but the oil was pretty black. looked like about 10k mi on the oil. I thought changing with synthetic would help, but seems like its about the same. I think IM going to try the auto rx stuff, seems worth a try. thanks again.