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sprinkles08, ASE Certified Technician
Category: UK Car
Satisfied Customers: 23109
Experience:  ASE Master and Advanced level certified. Factory trained with 17 years dealership experience
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My radio does not work in my x5 BMW. After jump starting it

Customer Question

My radio does not work in my x5 BMW . After jump starting it
Submitted: 2 years ago.
Category: UK Car
Customer: replied 2 years ago.
You've charged me £19 I thought it was £3 deposit first
Customer: replied 2 years ago.
I just want advice one off not a membership please.
Customer: replied 2 years ago.
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Customer: replied 2 years ago.
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Expert:  sprinkles08 replied 2 years ago.

Hello and welcome to JustAnswer!

Radios are very sensitive to proper voltage and it isn't uncommon for them to fail after a jump start, battery disconnect, etc, usually due to improper technique or reversed polarity.

The issue is either the radio itself or a loss of power or ground to it. If fuses are good then a loss of power would have to be a wiring issue, which is highly unlikely to happen as a result of jump starting.

If fuses are good then the next step would be to remove the radio and test it's powers and grounds. If ok then the radio can be condemned.