Repair of radio, navigation and amplifier Volkswagen California T5
We repair the RNS 315 (TechniSat) from the Volkswagen California T5 facelift, including when the “Please insert software CD” message appears and the NAVI button does not respond.
Volkswagen California T5
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Repair of the radio, navigation and amplifier in Volkswagen California T5 covers the factory RNS 315 radio-navigation system (TechniSat), used in the post-facelift Transporter T5 range.
The navigation turns on, but does not work properly
If the RNS 315 starts up but still cannot be used, the cause may lie in the software. In that case, the screen shows the message “Please insert software CD” or, immediately after switching on, the “Software Update” screen. This same group also includes freezing, resetting and no response to the NAVI button. We also handle units where the code is missing.
RNS 315 hardware faults
The second group of cases concerns the hardware itself. We repair units in which:
- the touchscreen does not work or the display is shattered,
- the FM or GPS antenna socket has been torn out,
- the front panel buttons are worn or damaged,
- the drive cannot read CDs or the reader cannot read SD memory cards.
A radio that does not switch on at all may belong to either group — checking the module determines which one.
Navigation repair request for California
Please give the vehicle year, describe the fault and attach a photo of the front of the unit and the label with the part number. Based on this, we prepare an initial quote. Only the removed unit should be sent to the workshop. After checking it, we confirm the cost, start work after your approval, and finish the repair with a device test.
Frequently asked questions and answers
Repair of the radio, navigation and amplifiers in Volkswagen California T5: request, module shipment and quote.
Do you repair the TechniSat navigation from the facelift California?
Yes, we work on the factory TechniSat infotainment unit used in the facelift Transporter range. Send us a photo of the front of the unit and the label, and we will confirm whether it is this unit.
The navigation in the California shows the update screen as soon as it is switched on – what next?
The “Software Update” screen immediately after start-up is one of the software faults we repair in this unit. Take a photo of the screen and include it with your booking together with the car’s year.
The radio in the California does not read SD cards or discs – do you repair that?
Yes. Failure to read CDs or SD memory cards is one of the hardware faults we deal with in this navigation unit. We confirm the scope of work after inspecting the removed module.
Do I have to bring the California to the workshop?
No. We inspect the removed navigation unit, not the car. You send the unit by courier or bring it in by prior arrangement, and you have the removal done by a local mechanic.
The buttons on the navigation panel in the California are worn – does the whole unit need replacing?
Worn or damaged front-panel buttons are repaired as part of the hardware faults on this unit. We confirm the scope and cost after inspecting the unit you send.



