Can you blow a car

Bulbs burn out all the time

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    298
    Act vehicle
    E46 328i sedan

    Hello!!
    I have the problem that my headlight bulbs keep burning out, and that's distributed on both sides: the dipped headlights on the left, then the parking lights on the right, etc. It all started with the trip meter lighting failing, but the total mileage is still on. Then it occurred to me that I once had a leftover granola bar on the engine. Could it be that I had a marten in the engine compartment? If not, what else can it be? By the way, the bulbs always burst when you switch them on - but not every time.

    thank you for your help
    greeting
    Car freak

    Envy is the highest form of recognition

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    Opel Astra J Sports Tourer Opel Astra K Sports Tourer
    Mark
    OIL

    Hi, let's have your light machine checked. Probably the diode inside is defective and you have an overvoltage which then shoots the pears apart

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  • I guess a defective controller, just measure it (let it). The muesli bar could also have sailed in without a marten, with me sometimes the strangest things were on / in the car.

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    1.174
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    320d (F30)
    Mark
    M-xx-xxxx

    It was the same with an acquaintance.
    He was with to check because he suspected the regulator and generator.
    The real cause was trivial: the battery! After changing it was quiet.

    greeting
    KaptnKirk

    "Those who would give up essential Liberty to purchase a little temporary Safety, deserve neither Liberty nor Safety."
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  • Incidentally, the pears always burst when switched on

    It is normal for the bulbs to burn out when they are switched on: When cold, the resistance of the filament is lower, so a higher current flows, which results in a corresponding magnetic field. As a result, the incandescent filament weakened by the loss of material during use is torn.

    Alexander

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    352
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    318Ci convertible 6/05

    take apples :-)

    (I couldn't help myself)

  • Contributions
    298
    Act vehicle
    E46 328i sedan

    Hello!!
    Thank you for your answers.
    According to your statements, it could either be the Lima, regulator or battery. Can the friendly one clearly tell me why it is. I just don't want him to change anything and the problem will come back.
    Shouldn't it be better to go to Bosch if you have electronics problems?

    greeting
    Car freak

    Envy is the highest form of recognition

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    123
    Act vehicle
    Alpina D3 Biturbo Touring all-wheel drive

    Hello car freak,

    no matter what the cause is, you should (have) checked as soon as possible whether the on-board voltage is not too high.

    If the voltage is too high, it is not good for the battery and also bad for the on-board electronics.

    You can measure the on-board voltage yourself with a multimeter directly on the battery. To do this, the engine has to be running, whereby you also have to perform the measurement at different speeds.

    You can also check the on-board voltage as a rough estimate if the BMW has an on-board computer. You have to see if there is a point in the secret menu at which the voltage is displayed.

    The on-board voltage must not exceed 14.4 V.

    Also see if the light or the instrument lighting flicker strongly while driving. In this case, make a note of the speed and which consumers are switched on.

    Under these conditions, i.e. at the same speed and with the same switched-on consumers, you repeat the measurement of the on-board voltage.

    This can also be done via the on-board computer while driving.

    Best wishes

    Uwe

  • Contributions
    298
    Act vehicle
    E46 328i sedan

    Hello again!
    First of all, flickering doesn't do anything.
    I checked the secret menu of the automatic air conditioning. With menu item 11, I think it was always around 13-13.5 V during normal driving. Do I have to watch whether this value is also present when the gears are turned down? Then what can it be now?

    greeting
    Car freak

    Envy is the highest form of recognition

  • Contributions
    123
    Act vehicle
    Alpina D3 Biturbo Touring all-wheel drive

    Hello car freak,

    13.5 V is actually the lowest limit. However, this is usually measured directly on the battery. Because we don't know where the on-board computer measures the voltage, this can be perfectly normal. If you have a multimeter, you can measure the voltage directly on the battery.

    In any case, watch the voltage with the on-board computer for a long time. It could be that the voltage only increases for a short time.

    If the voltage doesn't rise, I don't know what the cause of the burned out lamps is, but at least it is ensured that something else doesn't break. That was the real reason why I suggested the measurement.

    Best wishes

    Uwe

  • Contributions
    2.385
    Act vehicle
    530iA 320iA 316i

    Hi!
    It might be advisable to examine the electrical system for contact problems.
    The resulting voltage peaks could be responsible for the bulbs going bad ... Uh ... the failure of the lamps.
    Greetings Deep Fly