1999 v70 wagon Relay

jdpooley · Post by **jdpooley** » 11 Jan 2014, 17:47

I have a '99 v70 wagon. 120k miles. Every so often wipers and fan motor (heating/cooling inside the vehicle) will not work at all. You turn off car then turn back on and everything works. Is this a relay issue? If so, which relay should I replace?

Thanks in advance!

Post by **JRL** » 11 Jan 2014, 18:00

One has nothing to do with the other, completely different circuits

jdpooley · Post by **jdpooley** » 11 Jan 2014, 18:30

Thanks. That rules out the relay. Any thoughts on what it might be?

Post by **kcodyjr** » 11 Jan 2014, 19:25

Both are common enough failure scenarios and needn't be related.

For the wiper issue, the relay is above the driver's left foot. IPD has a replacement that adds adjustable delay wiper function, so if that turns out to not be it, at least you got an upgrade.

For the fan issue, is it MCC or ECC, and does it happen on any fan speed including high?

Post by **Matty Moo** » 11 Jan 2014, 19:47

Possible flaky ignition switch also.

jdpooley · Post by **jdpooley** » 11 Jan 2014, 20:23

Thanks for the help! I am new to Volvo's, learning a lot here. So thank you. Sorry, what is MCC or ECC? Sometimes when you turn the car on the fan will not work at all. Fan will not run on low or high.

Post by **JRL** » 11 Jan 2014, 21:11

You need a new blower and resistor. Install both and be done with that for 100K miles

As for your wipers, I seriously doubt it's the relay
If you need one I have both, stock and somewhere in the pile, an IPD delay relay

Post by **rspi** » 11 Jan 2014, 21:13

Post by **BEJinFbk** » 12 Jan 2014, 00:27

+1 on starting with the ignition switch.

Post by **mikealder** » 12 Jan 2014, 02:54

For those of you mentioning the relay with a variable delay timer function, the cheaper option is the local pick-n-pull yard, find a VW and grab the relay with .99 printed on the top - does the exact same job - Mike