R26 Alternator part number or advice needed

Discussion in 'Mechanical - Engine, Gearbox, Exhaust etc' started by Faultless, Sep 10, 2019 at 10:52 PM.

  1. Hi,

    I have recently bought a Megane R26 2008 that has a fault, the low power warning light and battery warning light come on around 10-15 mins into a drive.

    I have clip and checked for errors there was a present error in the engine ecu and the ucp ecu for alternator type and alternator multiplex. I have checked the connections and the alternator which to my surprise was a new alternator a Lucas item so I’m suspecting the car is fitted with the incorrect alternator. Tried asking RPD for an alternator but they cannot provide me with a part as they need the numbers off the old alternator.

    So any ideas on which alternator to buy? I have also looked on AUTODOC and there seem a lot of options so wanted to go Renault but they can’t help either. Attached are photos of the errors and also the alternator currently fitted.


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    bf0c1ffd7ce369adc37111869802dbc9.jpg

    Appreciate any help as I’d like to use the car as a daily.

    Thanks
    Lee


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  2. I know this sounds daft but have you tried a new battery, Halfords will deep scan the one in the car for free to tell you if it's any good or not, worth a try

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  3. Yeah tested at 90% capacity and 12.7V so should be okay, the fault that shows alternator type I have read can be to do with UPC needing the correct alternator charge that is coded to it?


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