Radio turns on, no sound though

RichMatt77 · Post by **RichMatt77** » Sat Jul 05, 2025 11:41 pm

Hi all

I'm new to the Z4, having picked one up today.

Its a 2.2 2004

It has nav and radio with the pop up display. The radio turns on, but no sound comes out. There are no steering wheel controls, so I can't mute it.
Any ideas please?

bigwinn · Post by **bigwinn** » Sun Jul 06, 2025 7:38 am

Do you have the higher spec system with an amp in the boot adjacent to the battery?

RichMatt77 · Post by **RichMatt77** » Sun Jul 06, 2025 8:41 am

Pass. I will go and check and get back to you. Z4s are an unknown to me atm!

RichMatt77 · Post by **RichMatt77** » Sun Jul 06, 2025 9:57 am

Okay. It has the amp in the boot

bigwinn · Post by **bigwinn** » Sun Jul 06, 2025 10:02 am

I’m willing to bet you will find water damage on the amp which has fried it

Pop it out for a look

bigwinn · Post by **bigwinn** » Sun Jul 06, 2025 10:02 am

I can see evidence of water ingress above the battery…

RichMatt77 · Post by **RichMatt77** » Sun Jul 06, 2025 11:45 am

The bottom of the amp is white

GenZed · Post by **GenZed** » Sun Jul 06, 2025 12:40 pm

looks like there's water ingress

bigwinn · Post by **bigwinn** » Sun Jul 06, 2025 2:52 pm

You need a new amp

Zedebee · Post by **Zedebee** » Sun Jul 06, 2025 3:31 pm

You need to sort the water ingress first, otherwise it’s £200-250 wasted

RichMatt77 · Post by **RichMatt77** » Sun Jul 06, 2025 7:34 pm

Thanks for all the help. Is water ingress from the boot seal, or is it from the roof?

bigwinn · Post by **bigwinn** » Sun Jul 06, 2025 8:03 pm

Most likely your light seals in the boot but check all options out

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