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  1. Uky

    AC not working

    Never attempt to refill a system without verifying that there is a proper amount of compressor oil in it. The compressor oil is circulating together with the refrigerant. In many cases, a leak can be detected by a dirty spot on the radiator as a result of a stone shot or around a gasket as a...
  2. Uky

    2004 CL500 ABC Issue

    When the ABC-system was introduced, there were cases when valves were replaced because struts got stuck. After some consideration, Mercedes introduced the "Rodeo test". This test, performed with Xentry, stresses the system, rocks the car around and listens for error codes. The ABC system...
  3. Uky

    CL 55 Kompressor electronic issues

    Been there - Done that. The door cable harness is prone to break after years of opening/closing the doors. Had to fix mine. A bit of a PITA since at least on C215 the M/Y 2000, there is no connectors for the door harnesses. The flexible rubber hose protecting the cables has to be carefully...
  4. Uky

    Comand NTG1 GPS issue - 2006 CLS 219

    There are indeed a lot of cr*p being offered on various sites. Go for a quality product. Try placing it on the rear bootlid on the outside of the car. Just as an experiment. If and only if the rear window has the same very fine pitch rear window demist heater wires as in my CL500 (C215), they...
  5. Uky

    New EQS 2025 Facelift - Return Of The Upright Star & Classic Grill

    I would really love to have that car. Or an EQE but only a fully loaded one with the beautiful all-integrated "hyperscreen", white nappa ventillated leather, pano roof and all the other goodies. But - there was a car consumer deprication report that came my way a few days ago. The price drop was...
  6. Uky

    Comand NTG1 GPS issue - 2006 CLS 219

    Try to get into the Engineering Menu of the NTG1 system. There should be a menu item to verify wether the GPS antenna connection sees an open or short circuit condition. Provided that the antenna is an active one (almost always the case - a ceramic patch with RF amplification circuitry built in)...
  7. Uky

    Re: Serpentine belt fitting

    Whenever changing serpentine belt, checking also (all) ball bearings should be done. I have changed tensioner as well as idlers on my cars. The wheel on the tensioner could not be replaced and so the entire tensioner had to be replaced.
  8. Uky

    Coolant light on dash

    Some car manufacturers specify de-ionized water to be used when mixing anti-freeze for the -40C or so lower temp requirement. If the level sensor uses electrical conductivity, de-ionized ater will not conduct the (very small) currents needed not to set the alarm. Mercedes does specify that tap...
  9. Uky

    W213 towbar control unit

    You will need to have car coded with the addition of the (Mercedes tow-bar) control unit. This is done using Xentry where the workshop will contact Stuttgart and update the vehicles option list to add a tow bar with controller. If this is not done, there will be an error message in the...
  10. Uky

    Mercedes shuns a return to physical buttons

    Apart from the multitude of touch screens without haptic feedback which requires the driver to take the eyes off the road, there are also the small touch sensitive menu surfaces on the left and right side of the steering wheel. They also requires the driver to look down the instrument cluster...
  11. Uky

    2019 C200 poor ride quality

    The rims that came with my C238 are 20" and they are the only part of the car that I utterly dislike. Even as I use "comfort" suspension setting, the ride is hard and the road noise disturbing. When the tires are worn out, I will replace the rims with 18" which is the smallest possible size that...
  12. Uky

    OTA map update

    ...AI is nowhere near my "ME" account. Got a message a few weeks ago that Map updates Version 26 is now available. OTA for my home region but ME suggested manual download for other regions. So I logged in, selected the entire western continental Europe and downloaded the map data. It did take...
  13. Uky

    Replacing one's own battery

    Nice video. +++ for having tha camera in a fixed position while showing the process. There are however a few hints that I would like to add that will keep many settings unchanged so that they will not have to be re-entered after a battery replacement. The procedure below is used at least in the...
  14. Uky

    Engine not warming up

    Regarding the engine coolant: Some brands uses a sensor that simply measure the resistance between two metal strips to check the level. A small current flowing = level is above lower limit. Cars that uses resistance measuring for coolant level check does allow the use of ordinary tap water...
  15. Uky

    Jap Import W222

    I can only refer to problems with re-localization of cars that have been imported privately - once manufactured and configured for the North American market where speedometers, DRL's, rear turn signal colors, navigation, etc. differs from Europe. Most manufacturers tries to minimize the number...
  16. Uky

    Red warning light, Stop Vehicle. See owner’s manual

    A battery warning could indicate that either the battery or the charging system is malfunctioning. Testing for this includes: - Load test using a tester that discharges the battery with a (very) high current an at the same time records the voltage drop. This will test the battery for capacity...
  17. Uky

    Engine not warming up

    MB does sometimes manage to hide cable harnesses well... A not to uncommon problem is water ingress into the connectors of different cable harnesses. Or that one or more metal sleeves becomes dislocated and fails to make proper contact with either a sensor or the CAN/LIN/K-Line parts of the...
  18. Uky

    TPMS & rotations of tyres

    There are three types of TPMS: 1. One that checks for any unbalance between wheels on the same axis. This "primitive" system reads the ABS sensor pulses. A flat tyre rotates faster which will trigger a warning. No actual pressure is measured. (This is really only a warning system but very cost...
  19. Uky

    Service plans doubled overnight?

    ...In Germany, AMG stands for "Adiö Mein Geld" (= Goodbye my money)...
  20. Uky

    Android Auto on Merc E class C238 2019 has mind of its own

    To me it sounds more of a cell phone coverage problem than a cable issue. Since my Sony Xperia is too old to use the NFC pad in the center console, I installed a cell phone holder with a USB connection that keeps the phone at about the same hight as the digital dash (but not blocking any view)...
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