Hey guys, first time posting, been using the forum for information for a while though!

2012 4.4 tdv8
Recently replaced my drive-belt and idlers, water pump etc. When I took off the fan shroud I unwittingly unplugged the vacuum lines for the COSV without noticing.

Anyway, I have it all back together and plugged one end of the vacuum line into the actuator but I can't figure out where the other end plugs into. I've searched my heart out but can't find any details on the vacuum line itself! Any help would be greatly appreciated.

As expected I get the p004c-77 and p004b-71 when I go over 3500 and try to use the second turbo.

Click image to enlarge

Click image to enlarge

That’s the front diff vent pipe. 2012 TDV8 Vogue (L322)

Thanks JayGee, I thought it must've been a breather pipe.

Any idea where the vacuum line feeding the the secondary air change-over valve connects up to? I have one end in the CSOV but can't find any reference to where the remaining end goes!

If you remove the large air intake rubber hose from the intercooler to the throttle body and then investigate down the front of the engine under the passenger side (UK) rocker cover you will find hidden a solenoid valve with several vacuum pipes attached and this is where the other end should go. I only know this because I had the two pipes which run from the vacuum pump come off when I was investigating a coolant leak a couple of weeks ago. I found the rubber tubes which they plugged into had ‘relaxed’ with age and were not gripping the plastic tubes. As a fix for now I put small cable ties around each joint to keep them in place. It was a fiddle due to the limited access but seems to be working so far. 2012 Westminster TDV8 4.4 Indus Silver
GAP IID Bluetooth Tool

Previous Range Rovers:

2005 L322 Vogue SE TD6 Zambezi Silver
1995 P38A HSE Epsom Green
1988 Classic Vogue EFi Cassis Red
1973 Two Door Tuscan Blue

thanks for that. With your directions I was able to get that line plugged in and now the second turbo works. Never expected it to be located there to be honest cheers

That’s good news, pleased you have got it sorted. 2012 Westminster TDV8 4.4 Indus Silver
GAP IID Bluetooth Tool

Previous Range Rovers:

2005 L322 Vogue SE TD6 Zambezi Silver
1995 P38A HSE Epsom Green
1988 Classic Vogue EFi Cassis Red
1973 Two Door Tuscan Blue