Question about 1999 Mercedes-Benz E-Class
I recently bought a 1999 E320 and the engine was not noisy in the beginning and not very audible in street traffic. I made a mistake? after opening the hood I heard a ticking noise but by then it was too late for remedy the owner, original byuer with all maintenance records and keen in keeping the car top fit, was surprised and said he did not hear it either..
Well I am stuck with it now...
A brief mechanic eyeballing suggested it may be a stuck valve..the engine purrs and responds fine. After startup (cold) the engine doe not audible tick but after a mile or so it is noticeable when the window is down or when idling with the hood up. Oil Check OKay Mobil1 5w30 syn
Engine runs smooth good pick up and fuel economy.
Do I have a big problem? What is a reasonble remedy.
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Posted on Jan 02, 2017
Brand names aside, both lubricants bear the same designations. 5w being how the temperature when cold affects the pour point of the lube, second # being how the lube protects components (film strength) when at operating temp. If you follow recommended oil change intervals, either will perform fairly well, and better than conventional oil. I have done extensive research on lubricants and their properties as related to professional drag race engines which see far higher pressures, temps and general "abuse" when compared to the grocery getter. The major difference between lubricants from varying manufacturers is the additive and stabilizing chemical packages they add to the actual lubricant and the quality of the "base" oil which is essentially "cloned" to produce the synthetic. This package determines the lifespan of the product, based upon burn off rate, chemical changes from shear etc. Since many auto manufacturers have increased oil change intervals, if followed, any synthetic on the market today is pretty much OK to use. Do your own research if you want to exceed manufacturers requirements. One company, Amsoil, offers some really good lubricants that exceed every requirement in every application. There are other companies that also offer some good options. The final decision is up to you, but in average driving situations, as a general rule, just about any lube that meets manufacturers posted specifications should be OK>
Posted on Jan 26, 2009
as far as the car reving up when its cold it is probaly a dirty IAC or Idle Air Control valve its only function is to control the idle if you can locate it it is on the intake right bye the butterfly and the throttle postion sensor. And as far as the slow take off it may be the cataletic converters they are exspensive to replace but if clogged up will make the car run like adogg at take off and kill fuel milage
Posted on Mar 04, 2009
If you have an adjustable valve train you may need to adjust the rocker arms. Remove the valve covers and look to see if there are adjusting nuts on top of them. If so, get a shop manual and a feeler gague and a couple of wrenches and screwdriver and follow instructions in manual carefully.
Posted on May 20, 2009
SOURCE: 320 SLK Coil ticking.
I also have a 2001 SLK 320 with same issue. It is definitely a lifter problem due to the fact that it is occasional. Also, if a coil were bad then it would trigger an engine code ('check engine' light), plus it would run rough for longer. Try some oil treatment first, if that does not work for you then you'd have to replace the lifters.
Honestly, it's a lot of work. I am not sure if I am going to keep it or not. I honestly absolutely love my car but I just don't know now.
Posted on Jun 22, 2009
sounds like the flex plate on the back of the torque converter has splt across the bolt hols that hold it to the crankshaft
Posted on Oct 25, 2009
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