BMW 735i Sunroof Switch Parts
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BMW 735i sunroof switch typically cost between $145.99 and $149.99.
How Do I Diagnose a Faulty BMW 735i Sunroof Switch?
If your BMW 735i sunroof switch isn’t working as it should, start by figuring out whether the problem’s in the switch itself or somewhere else. Press the switch and watch if the interior lights dim—it can mean the motor’s trying to work. Listen closely for any clicking or whirring from the sunroof. If there’s nothing, pull the switch out and check for power at the connector using a test light or multimeter. If you have access to a compatible sunroof switch from another BMW, swap it in and see if that solves things. If the replacement works, the original switch is probably bad. If not, you might be looking at an issue with the wiring or the sunroof motor instead.
What Are the Symptoms of a Bad BMW 735i Sunroof Switch?
A non-working BMW 735i sunroof switch will usually leave the sunroof stuck, either closed or half open. Sometimes the sunroof will move one way but not the other—for example, it’ll tilt up, but won’t slide back. If the switch is on its way out, operation might be hit or miss, especially if the contacts inside are dirty or worn down. Another clue: The switch might feel mushy or loose, missing that familiar click. On rare occasions, a failing switch will stop the sunroof partway through opening or closing. If you notice any of these signs, check the switch first before digging into the wiring or the motor.
How Can I Replace The BMW 735i Sunroof Switch?
To swap out your BMW 735i sunroof switch, gently remove the overhead console with a trim tool—most are held by spring clips. Be sure to disconnect the battery before unplugging the switch, just to be safe. Take out the old switch (some models use screws), disconnect the wiring, then fit in the new one and snap everything back in place. Reconnect the battery and test the sunroof to make sure you’re good to go. A plastic trim tool helps avoid scuffing the console or headliner as you work.
Is There a Way to Repair a BMW 735i Sunroof Switch Instead of Replacing It?
You might be able to fix your BMW 735i sunroof switch before buying a new one. A sticky or unreliable switch can sometimes be brought back to life by taking it apart and cleaning the electrical contacts with a small brush or contact cleaner. If you see any dirt, corrosion, or wear, clean it off gently—a little goes a long way. If any contact arms look bent, carefully straighten them. Don’t force anything or you might end up making it worse. If the switch still doesn’t work after a thorough cleaning, it’s probably time for a new one.
Why Does My BMW 735i Sunroof Switch Work Only Sometimes?
A BMW 735i sunroof switch that only works off and on can be a pain. This is usually caused by dirt or moisture getting inside the switch, or by contacts inside wearing down. Sometimes changes in temperature can make the issue worse, or a shaky connection in the wiring harness can cause problems. Check the wiring for any loose or corroded connectors and clean those up. If everything checks out and the problem keeps coming back, replacing the switch is your best bet.
Need a BMW 735i Sunroof Switch at a Great Price?
At AutohausAZ, we know how important it is to keep your BMW 735i in top shape, including something as simple as the sunroof switch. We offer competitive prices, fast shipping, and hassle-free returns to get you what you need without any headache. When you shop with us, getting your BMW 735i sunroof switch is quick, easy, and affordable, so you can get back on the road without any stress.
