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  1. Seat Heater Module E320 2002

    W210 E-Class
    Should be behind the seat heater buttons.
  2. Wacky A/C system....again!

    W210 E-Class
    After you do the temperature check at the duovalve output as above, with the engine is fully warmed up, Turn the engine off with the settings HI HI or some high temperature. Activate the REST function. Will the hot air come from both sides ? I just want to make sure that it is not...
  3. 96 E320 everything appears to be good but won't start

    W210 E-Class
    Here it is. The door locks and the trunk are connected to port c on the PSE. This is for W210's before 1998.
  4. Transmission problems

    W210 E-Class
    There is no such C0300 code. For Benz, C codes start with C1XXX. It could be P0300 since you have P0301. I second Loden's suggestion.
  5. HELP! Key Fob and "convenience controls" won't work

    W210 E-Class
    1.) Does this mean that the PSE failed first causing the CanBus to go haywire and fail other connected systems, leading to errors being stored in the SAM? Who knows.. The best way to find out is to look at CAN bus fault log with the MB scanner or equivalent. 2.) Following the first question...
  6. P0335 Code,but runs fine.

    W210 E-Class
    I would change it asap. It will not resolve all by itself. You may have some hick-ups in hot starting later on. Get an MB or Bosch brand.
  7. Wacky A/C system....again!

    W210 E-Class
    Have you checked the hose temp from the duovalves to the aux coolant pump when it is set HI HI ? First check when it is LO HI, then HI LO then HI HI to see if anything is different. No idea why the coloring for the vacuum hoses are different but sometimes the colors come out different in the...
  8. HELP! Key Fob and "convenience controls" won't work

    W210 E-Class
    All these issues , except a few, point to the SAM controlled functions. It is possible that there is water seepage into the SAM (under the hood, driver's side, underneath the K40/2 fuse and relay module. A blown horn fuse is also an indicative that something is going on there. Make sure...
  9. HELP! Key Fob and "convenience controls" won't work

    W210 E-Class
    No lights on lock / unlock means the SAM is not receiving commands to do so. Sunroof problem: if manually does not open when the ignition key is in position 2 (and fob lock / unlock works) means you have a problem with the sunroof motor or the RCL sunroof motor driver / position sensor...
  10. HELP! Key Fob and "convenience controls" won't work

    W210 E-Class
    I would remove the roof control module and have a look for water damage on the PCB , connectors, wiring. Also possibility to seep onto the X30/7 at the passenger side sill. The sunroof will not work if the module does not receive a signal over the CAN bus from the EIS to indicate that sunroof...
  11. 98 E300 drivers window quits working/battery drains

    W210 E-Class
    The problem could be the PSE, or it may come back after few days. The key point is you unhooked the battery, and things started working again. It could have been the same result if you just disconnect the battery and reconnect as you did with the original PSE. What happens is, if the CAN...
  12. HELP! Key Fob and "convenience controls" won't work

    W210 E-Class
    You definitely have an issue with the CAN bus, or one of the modules on the bus causing problems. 1) Horn: button contact goes through the clock spring, then to the instrument cluster then wired to the ignition switch. The ignition switch (EIS) converts the signal into a message and sends...
  13. HELP! Key Fob and "convenience controls" won't work

    W210 E-Class
    1) nothing on the key seems to be missing that could cause the problems you are having 2) SOS message should not cause the problems you are having. Have you tried Infra red locking / unlocking ? (bringing the tip of the fob to the IR receiver at the driver's door handle / trunk lock ? Does...
  14. 98 E300 drivers window quits working/battery drains

    W210 E-Class
    The front dome light is controlled via the N70 (Roof Control Unit) via a command over the CAN bus from the PSE when a door is opened. The rear window defrost button and its LED are hardwired to the SAM from the a/c controller. The signaling is between the SAM and the PSE for activation /...
  15. 98 E300 drivers window quits working/battery drains

    W210 E-Class
    If a unit is not put to sleep by the controller (EIS) it will drain power. You could measure the current drain on individual fuses after 10 to 15 minutes with key out. You can also measure the total current drain from the negative battery terminal with ammeter connected in series. Make sure...
  16. w210 e290td automatic

    W210 E-Class
    Please provide the connector identities (A,B,C,D,E), and pin numbers together with color codes for the wires marked.
  17. 98 E300 drivers window quits working/battery drains

    W210 E-Class
    The SDS will allow you to read codes from the body modules. You can use the HHT-WIN (as depicted HHT in the attached link) to look for BXXXX codes especially for the door control modules CAN bus issues.. Function-Closing systems-Central locking or DAS-DTC memory...
  18. Wacky A/C system....again!

    W210 E-Class
    If the auto mode is working (item 3) then, I do not believe blending flaps are the problem. Did you ever check the voltages on the duovalves when HI - HI ? I know we went through this before but I still think it is something related to coolant circulation issue within the heater...
  19. Wacky A/C system....again!

    W210 E-Class
    Any particular side ? I mean if you apply heat to driver's side only OR passenger side only, the respective side provides heat as required, or only one side provides heat but the other does not ? Regarding the defrost mode... I guess the algorithm is that the fresh COLD air has less humidity...
  20. Wacky A/C system....again!

    W210 E-Class
    The Y11 switchover valve is located behind the glove box. Over time, I am not sure what has changed in your climate control problem. Could you just explain briefly what the latest status is ? If you did the flap test and all seem to be fine, I do not think the blend flap is your problem...
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