2012 Volvo V70 Overheating Issue: Possible Additional Water Pump Fault

Hey there, sounds like you're having a rough time. I own a 2015 Volvo S60, and went through something quite similar just awhile back. From your description, it does seem like the extra water pump might be acting up, but it could also be due to another issue I faced with my car - a defective cable on the pump/control unit. Here's the thing, having the engine light on, your car overheating, and low coolant level - these could indicate that the control unit is not communicating efficiently with the pump due to the faulty cable, thus impacting the coolant flow. In my case, it wasn't an easy issue to diagnose initially. A lot of hit and miss happened before finally landing on the problem. But once the cable was replaced, my car was back to running smoothly. So, yeah, my experience suggests that this could a serious issue, not because of the severity per se, but due to the impact on your car's performance and possible damage if left unchecked. A good mechanic is key, though. Make sure yours is well-acquainted with Volvo and its specific quirks. Good luck, hope you get it all sorted out soon!

(Translated from German)

Hiya, reading through the rough patch you've been going through with your V70. Seems like you're caught in a similar snafu that's S60 ran into. Considering the symptoms, the faulty cable story on the control unit/pump surely seems plausible. Also, I agree, it's crucial to get this sorted before it escalates and messes up other components. Have you had any luck with a savvy Volvo mechanic yet? if you don't mind sharing, do you remember off the top of your head how much it cost you to fix this issue? Just so our friend here has a ballpark figure. And have you had any recurring system faults ever since your repair?

(Translated from German)

Hi again! Yeah, I can still remember the figures quite well as it wasn't too long ago that I had to fix my S60. Getting the cable on the pump/control unit replaced cost me around 225€. Might not be exactly the same price for everyone, but should give you a rough idea of what you're looking at. As for recurring system faults, well, touch wood, but since getting the cable fixed, my ride's been pretty much back in tip-top shape. During the repair, the mechanic focused on the additional water pump as well. Thankfully this part wasn't acting up anymore once the cable issue was rectified, so that's a big relief. I do strongly recommend you to get your V70 checked out by a good mechanic ASAP. Trust me, dealing with these issues promptly saves you from long term headaches. Good luck with it, fingers crossed!

(Translated from German)

Hey, thanks a bunch for the quick and helpful replies. Your experiences have given me some relief and better understand what I might be dealing with here. Your information, especially about the defective cable affecting the communication between the control unit and pump, seems to fit in with the symptoms I've been experiencing. No wonder my poor Volvo's been taking such a hit performance wise. And the cost estimation is much appreciated too, gives me something concrete to go on while discussing with a mechanic. It's been real rough finding a mechanic well-versed with a Volvo, like you said. Crossing fingers I'll find the right fix this time. I'm going to get onto this ASAP, don't fancy the sound of long term headaches. Once again, really appreciate the advice. I'll make sure to keep you all posted once this is sorted. Cheers!

(Translated from German)

my vehicle volvo xc70 year 2012 diesel 5 cylinder, the warning light comes on and the fans work at low level my question is this vehicle can be purged because I suspect it has air bubbles.

(Translated from Spanish)

Yes, your Volvo XC70 can be purged. Air bubbles in the cooling system can cause overheating and other issues. Start by checking the coolant level. If it's low, fill it up and then purge the system. If you're not comfortable doing this yourself, I recommend taking your vehicle to a professional mechanic. It's a relatively simple process, but if done incorrectly, it could lead to further issues.