07 Volvo V50 Diesel Overheating Issue and Engine Coolant Bypass Valve Troubleshooting

Hey, sounds like you're in a bit of a tough spot with your V50. I have an '09 Volvo V60 Diesel, kinda close to yours, yeah? Now, I ain't no grease monkey, but I’ve tackled a few car issues here and there. So take my word with a pinch of salt! Had a similar problem a while back. The bugger there turned out to be the coolant bypass valve cable connection – it was defective. Took it to my friendly neighborhood garage where they sorted it out in a jiffy. Cost me about 155 Euro, not too bad, yeah? To get into the nitty-gritty of your issue, could you possibly snap a few pics of the bypass valve area, or maybe tell us if you've noticed any leaks or anything? Hope this helps bud and you get your V50 running smoothly again soon!

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Hey, thanks for the help! Really appreciate your insight. Popped the bonnet open earlier today and ya know, I did recall noticing a bit of dampness around that area. But I ain't noticed any leaks as of now. I'll try grabbing a few snapshots post work today and share em' here. In terms of mileage, my V50's sitting at about 38443 KM, had the last service about a couple of months ago. Everything was shipshape then, no problems mentioned. The overheating and the engine light thing just started happening out of the blue. It's a proper puzzle, innit? Despite this problem, gotta say, this old workhorse hasn't given me much of a headache in the past. Here's hoping it's just a minor fix this time around too. Cheers for giving me a direction to look in, you're a lifesaver!

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Hey, happy to lend an ear anytime! Your low mileage V50 is pretty well off for an '07 model, I reckon. The dampness you noticed, though, could suggest some kind of coolant fluid issue, perhaps a small leak that’s yet to become noticeable, or condensation, but that’s just speculation on my part. Remember my coolant bypass valve cable problem? The dudes at the garage told me it happened because of heat exposure. Could be engine heat, but hey, since we both drive diesel Volvos, I reckon, could be similar scenario for you. Especially with that check engine light being on simultaneously. Given that you've not experienced more trouble with your dependable old V50, I wouldn't be too worried. These Swedish machines are built like tanks, aren't they? Usually, any problems can be sorted without too much of a fuss. I’d suggest getting it checked out anyway, just in case it's starting to show its age. Would hate to have you join the overheated engine club! Waiting on those pictures, I'm sure someone around here can help make sense out of 'em. Keep us posted and crossin' my fingers it's no biggie. Cheers!

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Thanks for sticking with me on this! Really appreciate the insight. I reckon I've come across a similar scenario with a different car before, so it does ring a bell. But you're right, it's best for me to have it looked over properly to avoid joining that overheated engine club you mentioned. Haha! I'm definitely working on getting those pictures soon, promise on that! And yeah, I've been quite fortunate with my V50 so far, these Swedes sure do know their cars. It's been a dependable workhorse and I'm optimistic it'll carry on that way once this issue gets sorted. I'll keep everyone posted on how it goes down at the garage and hopefully, it'll help anyone else who might run into this. Thank you again! Cheers!

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