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MAN mmds-clc 6.3 Monitoring System fault reset

Discussion in 'Electronics' started by Louay, Aug 7, 2017.

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  1. Bob Fino, Sep 19, 2018
    #21
    Bob Fino

    Bob Fino New Member

    Joined:
    Apr 19, 2015
    Messages:
    2
    Location:
    Virginia beach
    I have to believe it can be reprogrammed. If you contact Boning, they are the company that manufactures the displays for MAN. They have a Florida office in Boca Raton.
    Boning-USA
    4281 NW 1st Ave.
    Boca Raton, FL 33431
    561-372-9894
    info@boening-usa.com
    Good luck
    Bob
  2. mtam22, Sep 1, 2022
    #22
    mtam22

    mtam22 New Member

    Joined:
    Apr 3, 2022
    Messages:
    1
    Location:
    Hong Kong
    Sorry for reviving such an old thread. I purchased my boat second had 3 months ago. It runs a pair of MAN D2848 LE423 with MDSS CLC 6.3s. Now there have always been alarm codes on both engines (gearbox oil pressure sensor alarms on both and coolant pressure/coolant level/air filter pressure on the portside) and the new sensors are on their way. This morning I went down to the engine room to check engine oil levels on the engines and generator and while poking around, I discovered the sensor to the starboard side ZF350IV gearbox was unplugged. Thinking shoddy workmanship from previous owner's shipyard and they probably forgot to plug it back, I plugged the line marked "Speed-in" back into the sensor. Lo and behold, starboard engine won't start even after I unplugged it again and I get a "BUS ERROR check data bus" message in the tachometer on the flybridge. I also get a flashing red LED light at the bottom of the MDSS CLC right next to the green power LED. Is there a way to reset this using the buttons on the MDSS or must I get the dealer to come in to reset? thanks!
  3. Capt J, Sep 1, 2022
    #23
    Capt J

    Capt J Senior Member

    Joined:
    Jul 11, 2005
    Messages:
    14,434
    Location:
    Fort Lauderdale
    Are your engine batteries good? Bad batteries can create all sorts of erroneous codes with MANs. I'd say you're going to need to get a MAN dealer out with the laptop.
  4. mapism, Sep 2, 2022
    #24
    mapism

    mapism Senior Member

    Joined:
    Aug 9, 2008
    Messages:
    2,116
    Location:
    Sardinia
    What I wrote here still stands, if you're interested.
    But beware, it's tricky stuff, meant for engine shops, so use it at your own risk.

    That aside, just FYI and with apologies if this sounds a bit scaremongering, your engines have been a sort of common rail "development platform" for MAN. In fact, the V8 block is the only one that went straight from 100% mechanical to fully electronic CR, while the inline 6, V10 and V12 all went through the semi-electronic fuel control known as EDC, before eventually getting the CR conversion.
    As a result, according to a couple of MAN engineers I spoke with, the CR V8 is the engine which suffered most youth troubles, also because, back then, neither the builders who adopted it nor the MAN dealers supporting them with the installation had any experience with them.
    I'm saying this because if you just bought the boat, unless you had the engines already thoroughly checked upon purchase survey, in your boots I'd take the opportunity to ask a good MAN engineer to put his hands on them, regardless of whether you might find a way to reset the error or not.
    Good luck!
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