X reg berlingo van wipers indicaters only work after driving for 5mins

Start by checking your battery and alternator. You may be starting off with below minimum values.

After running for 5 minutes then the system charges. Check that first.

How to Diagnose a Problem With Windshield Wipers in a Car (http://www.ehow.com/how_8770095_diagnose-problem-windshield-wipers-car.html)

http://www.ehow.com/how_7289717_troubleshooting-windshield-wiper-problems.html