# Problems with BMW 535 CD / radio

**URL:** <https://community.cartalk.com/t/problems-with-bmw-535-cd-radio/56399>\
**Category:** Maintenance/Repairs\
**Tags:** 535, bmw\
**Created:** [October 15, 2010, 3:35pm UTC](https://community.cartalk.com/t/problems-with-bmw-535-cd-radio/56399 "2010-10-15T15:35:45Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![madm002](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@madm002](https://community.cartalk.com/u/madm002)\
**Post date:** [October 15, 2010, 3:35pm UTC](https://community.cartalk.com/t/problems-with-bmw-535-cd-radio/56399/1 "2010-10-15T15:35:45Z")

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Hi, our 2004 535i has an issue where on hot days, after the car is driven a little while, both the radio and CD player will have the volume drop and a huge amount of Static start. Everything in the car is stock, no aftermarket installation of anything.

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**Author:** ![shadowfax](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/shadowfax/32/13026_2.png) [@shadowfax](https://community.cartalk.com/u/shadowfax)\
**Post date:** [October 15, 2010, 3:53pm UTC](https://community.cartalk.com/t/problems-with-bmw-535-cd-radio/56399/2 "2010-10-15T15:53:27Z")

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That can be really hard to trace. If you’re lucky, a speaker wire or a wire to the head unit is loose and the heat makes it get a bad connection. But I suspect there’s a bad solder dot on a circuit board in the radio, in which case it would be cheaper to just replace the unit.

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**Author:** ![madm002](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@madm002](https://community.cartalk.com/u/madm002)\
**Post date:** [October 15, 2010, 3:56pm UTC](https://community.cartalk.com/t/problems-with-bmw-535-cd-radio/56399/3 "2010-10-15T15:56:04Z")

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Hmm, where is the head unit at?