Leaking at/near the coolant overflow tank
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    1. #1
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      Good morning and belated happy new year to everyone. My V50 T5 as a week that appears to be near the coolant overflow tank, from doing some research it appears that this is not an uncommon issue. The temperature needle stays dead center, and there is still coolant in the overflow tank but clearly this needs to be addressed.

      It looks like there were some mixed experiences with the less expensive aftermarket tanks and I wanted to check in to see what the current thinking was on using one of the less expensive aftermarket ones.

      Thanks in advance for the thoughts.

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    3. #2
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      Easy fix and shop at FCP Euro for a replacement.

      I just replaced the coolant reservoir last October.
      '83 242 Burgundy w/B230FT, '06 V50 Barents T5 AWD, '10 S40 Ice White T5 AWD,
      '12 C30 Ice White T5 R Design w/Polestar, and '13 C30 Rebel LE #189/250
      ALL MANUAL TRANSMISSIONS

      Manual Volvos for Life

    4. #3
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      Thanks, will check that out today.

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    6. #4
      The OEM Volvo, the one you'd get from Autozone, and the cheap one from RockAuto all have the EXACT same manufacturing markings on the bottom, at least when I did mine about 2 years ago, so I'd like to believe they are all actually manufactured at the same place with the same materials.

      I haven't had any bad luck with my cheapo from RockAuto either.

      The only thing you want to go OEM on is the cap. People have had issues using the OE brand documented here, and people have gone back to Volvo OEM specific caps.
      2006 Volvo S40 AWD T5 M66 - Dusty Rusty
      2012 Subaru Outback 2.5i CVT - Slowmobile - CAI only, Powerstop Rotors+Pads.
      1996 HD Electra Glide - Big Bertha - 10:1 Wisecos; EV13 Cam: Ultima Digital Ignition; Buell Head Conversion; E85 Carb Tuned;

    7. #5
      Junior Member Facusan's Avatar
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      Leaking at/near the coolant overflow tank

      I’d like to share this info: I bought a cap from my local ford dealer that is the exact same part as the one that came with my car. I paid $18 for it. That same day my local Volvo dealer quoted me $70 for that cap.

      Top cap: taken from my car
      Bottom: Ford cap








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      Last edited by Facusan; 01-05-2020 at 09:10 PM.

    8. #6
      Member AutoGeek's Avatar
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      The cap is vitally important. I had replaced my cap with a reputable aftermarket cap (Gates). My car did exactly as you described. The temperature was normal (needed in the middle) yet the coolant was coming out the tank overflow. The cap was not holding proper pressure and the coolant was boiling out. I replaced with a genuine Volvo cap 31368311 for $50 and all was good. I noted that the Volvo cap did fit tighter.

      That Ford cap does in deed look like the Volvo cap.
      2005 V50 T5 FWD M66 Passion Red (Radio Flyer) Bilstein HD, ECU spacer, Snabb Turbo Pipe

      1998 V70 NA - Sold, 2002 S40 1.9T - R.I.P., 2005 V50 T5 - RIP

      Remember kids, Speed doesn't kill ... impact does!

    9. #7
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      I bought a "Uro" tank for my car from Rockauto... it was probably around $30. Seems fine.

    10. #8
      Junior Member 80sGuy's Avatar
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      URO tank. Replaced on 04/2017. Under $38 shipped at the time! Kept original cap as there was nothing wrong with it. As good as new as we speak.










    11. #9
      Quote Originally Posted by Facusan View Post
      I’d like to share this info: I bought a cap from my local ford dealer that is the exact same part as the one that came with my car. I paid $18 for it. That same day my local Volvo dealer quoted me $70 for that cap.


      Sent from my iPhone using Tapatalk
      The perks of driving a Volord? Forvo? Good catch.
      06 S40 T5 AWD : DO88 intercooler : 3" EST downpipe : Eibach springs (1" drop) : Magnaflow cat-back exhaust : Hilton stage 2.5 tune

    12. #10
      Junior Member 80sGuy's Avatar
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      ^^Fofo.

    13. #11
      Quote Originally Posted by silent-circuit View Post
      The perks of driving a Volord? Forvo? Good catch.
      Nice, it's like the price difference between Colorado Springs and Denver Volvo dealers. One part is $40 down here and $100 up there.
      2006 Volvo S40 AWD T5 M66 - Dusty Rusty
      2012 Subaru Outback 2.5i CVT - Slowmobile - CAI only, Powerstop Rotors+Pads.
      1996 HD Electra Glide - Big Bertha - 10:1 Wisecos; EV13 Cam: Ultima Digital Ignition; Buell Head Conversion; E85 Carb Tuned;

    14. #12
      Junior Member Facusan's Avatar
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      The best part of this is the way people look at me when I say my car can use:

      Toyota transmission fluid, Mazda 3 sway bar links, Ford Focus motor mount and coolant cap, BMW E46 headlight projectors, Porsche 911 throttle body, Renault Laguna timing belt and tensioner, Land Rover LR2 coolant temperature sensor, GM transmission oil pan gasket, Ford Mondeo Engine air filter, BMW M3 Serpentine belt, etc

    15. #13
      Lmao...I got my cap in today, $12 from amazon - put it on - seems to be a tad less tight than the Volvo one that was on there - but otherwise didn't cause any boiling on my short trip to the daycare on an already hot engine.

      In just a half hour with the hood up enough pressure was relieved enough for me to swap out the caps, so that explains where I was loosing a quarter cup of coolant every month with the heatsoak from the engine being off and the pressure being relieved every day when I parked at home/work. Hopefully it is fixed.
      2006 Volvo S40 AWD T5 M66 - Dusty Rusty
      2012 Subaru Outback 2.5i CVT - Slowmobile - CAI only, Powerstop Rotors+Pads.
      1996 HD Electra Glide - Big Bertha - 10:1 Wisecos; EV13 Cam: Ultima Digital Ignition; Buell Head Conversion; E85 Carb Tuned;

    16. #14
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      Quote Originally Posted by Facusan View Post
      I’d like to share this info: I bought a cap from my local ford dealer that is the exact same part as the one that came with my car. I paid $18 for it. That same day my local Volvo dealer quoted me $70 for that cap.

      Big thanks to Facusan here. I just picked up the Ford cap for $22 at my local Ford dealer.

      Also saved me a lot of time since the Ford dealer is much closer to me than Volvo.



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      2005 Volvo V50 T5 AWD M66 (2017 - ) || 1987 Toyota MR2 (2016 - ) || 2002 Lexus IS300 (2016 - ) || 2005 Volvo S40 T5 AWD M66 (2016 - 2019) || 2008 Volvo V50 T5 (2015 - 2016) || 2001 Acura Integra GSR (2010 - 2010) Stolen lol

    17. #15
      Junior Member Facusan's Avatar
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      Quote Originally Posted by V50toS40 View Post
      Big thanks to Facusan here. I just picked up the Ford cap for $22 at my local Ford dealer.

      Also saved me a lot of time since the Ford dealer is much closer to me than Volvo.



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      Glad that info was helpful to you.



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    18. #16
      Member AutoGeek's Avatar
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      Excellent tip about the Ford cap. I used to buy Mitsubishi parts for my '90 Dodge Daytona that had the Mitsubishi V6 because they were cheaper and more convenient.
      2005 V50 T5 FWD M66 Passion Red (Radio Flyer) Bilstein HD, ECU spacer, Snabb Turbo Pipe

      1998 V70 NA - Sold, 2002 S40 1.9T - R.I.P., 2005 V50 T5 - RIP

      Remember kids, Speed doesn't kill ... impact does!

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