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Thread: VW Passat 1.9 TDI Poorr starting

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  1. Re: VW Passat 1.9 TDI Poorr starting 
    #11
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    Battery is good. It puts out 12.8 volts and goes up to 14.6 when idling. So, it's charging ok too. Car starts on warm days like today on the first turn of the key. It relates directly to temperature, it would seem. Like I said, I've replaced the glow plugs but they weren't the problem.
     
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  2. Re: VW Passat 1.9 TDI Poorr starting 
    #12
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    Glow plugs would not be required in warm weather. The battery Voltage does not prove that the battery may still be weak,as you said the battery does flatten fairly quickly !!
     
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  3. Re: VW Passat 1.9 TDI Poorr starting 
    #13
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    Float voltage is meaningless. Cranking capacity test is needed. How old is the battery?
     
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  4. Re: VW Passat 1.9 TDI Poorr starting 
    #14
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    Battery is sealed but when I took the top off there was a dipstick, which was coloured green. Phoned Varta. They said that meant the battery was good. Perhaps trying another battery might help. Just have to wait till winter now
     
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  5. Re: VW Passat 1.9 TDI Poorr starting 
    #15
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    I hadn't used the car for a week and battery was pretty flat when I went to start it a couple of times so I'm beginning to think there's a battery drain somewhere. But where to start looking I've no idea. There's something odd with the central door locking so I'm wondering if it could be something to do with that
     
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  6. Re: VW Passat 1.9 TDI Poorr starting 
    #16
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    Glovebox light would be a good place to start looking. I kept getting flat battery and eventually figured out it was this not switching off. Lol. Might not be but you never know. Sometimes it's the stupidest of things....


    Sent from my iPhone using Tapatalk
     
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  7. Re: VW Passat 1.9 TDI Poorr starting 
    #17
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    Don't think my glow plugs are working at all. I want to check the glow plug fuse and then check the relay. Anyone know where the glow plug fuse is? Supposed to be on the bulkhead but I can't find it. And anyone know which relay it would be?
     
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  8. Re: VW Passat 1.9 TDI Poorr starting 
    #18
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    OK. Cancel last. Glow plugs are working. I pulled the connection on the coolant temperature censor, and pulled an exciter wire from the top of a glow plug and connected it to a spare glow plug. I switched on the ignition and touched the body of the glow plug to the earth and it heated up. I did this on the exciter wire from numbers one and two cylinder. Both worked fine. So. by my reckoning, it is either the battery or the coolant temperature censor. Don't know which. What's my next move?
     
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  9. Re: VW Passat 1.9 TDI Poorr starting 
    #19
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    A scan
    eye for an eye means the whole world goes blind
     
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