IPD sale XeMODeX - Experts in Volvo Electronics

Get email notification of topic replies. Log in or register (free). Amazon Link Buy anything with this and it helps MVS!

S80 coolant overflow tank 2nd hose??

Help, Advice, Owners' Discussion and DIY Tutorials on the Volvo S80 model. Sometimes called an "executive car", the S80 was and continues to be Volvo's top-of-the-line passenger car.
Post Reply
850TurboTurtle
Posts: 263
Joined: Tue Aug 02, 2011 9:52 pm
Year and Model: 96 850T, 05 S80T6
Location: Tacoma WA
Has thanked: 5 times
Been thanked: 2 times

S80 coolant overflow tank 2nd hose??

Post by 850TurboTurtle »

What is the second hose connected to the S80 coolant overflow tank top? It goes down and into the engine cover. I bought a replacement coolant tank and it only has one hose nipple on top/ I'll be ordering the right part, but I'm curious where that other hose goes.
User avatar
June
Posts: 1960
Joined: Wed May 04, 2016 11:18 am
Year and Model: 2004 S80 T6
Location: Jacksonville, Florida
Has thanked: 366 times
Been thanked: 183 times

Re: S80 coolant overflow tank 2nd hose??

Post by June »

To the thermostat housing. June
My Volvo cars owned
1989 740 GLT ordered
1994 850 4door standard shift ordered
1996 960 ordered
1998 S90 ordered totalled after 3 weeks
1998 V70 GT dealer stock car
2002 S80 T6 ordered totalled
2004 S80 T6 dealer stock car and current car owned
User avatar
oragex
Posts: 5122
Joined: Fri May 24, 2013 6:20 am
Year and Model: S60 2003
Location: Canada
Has thanked: 100 times
Been thanked: 309 times
Contact:

Re: S80 coolant overflow tank 2nd hose??

Post by oragex »

On my non turbo it's simply an overflow hose from the radiator. Worth checking the clamp is tight, so it does not loose pressure - the tank is pressurized. If you notice white deposits around this hose, it may not be tight enough
Last edited by oragex on Wed May 27, 2020 5:46 am, edited 2 times in total.
User avatar
ndphotonl
Posts: 221
Joined: Sun May 27, 2018 7:09 am
Year and Model: 2001 S80 2.4T
Location: Netherlands
Has thanked: 26 times
Been thanked: 29 times
Contact:

Re: S80 coolant overflow tank 2nd hose??

Post by ndphotonl »

Yep, same here on my 2.4T. It goes to the top of the radiator.
Volvo S80 2.4T Wasa Limited Edition
Blog / FlickR / YouTube channel
Post Reply
  • Similar Topics
    Replies
    Views
    Last post