Help here pls

Anubisxc70 · Apr 25th, 2018, 18:57

2004 XC70 D5 awd

Hello
About a month ago i had my time belt done by the book all Volvo parts including the coolant.
Today i have notice a small leak on the thermostat housing.
Do i have to take all the coolant out (noooooooo) or can i get away clamping the tube from the radiator and replace the gasket on the housing?
Many Thanks

jgjones095 · Apr 25th, 2018, 19:01

You can remove the themostat cover and top rad pipe without loosing much coolant.

Where on the housing is it leaking?

petey · Apr 25th, 2018, 19:08

Probably wise to cover over the alternator as that doesn't appreciate too much water being poured into it directly, but don't be too keen to save a few £ and then run up a much bigger bill in the process....

Anubisxc70 · Apr 25th, 2018, 19:22

Thank you.
Its leaking on the left side of the housing where the top.

I need to make around 450 to 500 miles Monday to Wednesday is it alright?

Many Thanks

jgjones095 · Apr 25th, 2018, 19:37

I am not sure if the d5 and petrol 2.4t engines are the same.... but the seal between the screw on lid and housing is the thermostat seal.
Might I suggest getting a new themostat if going in.

oragex · Apr 25th, 2018, 20:15

Grab 1L of distilled water just in case. If the coolant level gets low it will show a message in the instrument panel.

Did you install a complete housing or just split it open and place the thermostat inside? Depends where exacting is leaking, at the seal with the engine block or at the seal that splits the housing.

It's not hard to drain the coolant at the radiator peacock - just careful as it's fragile(tighten with fingers only). Once the coolant back in place it's important to follow the correct air burping procedure.

Anubisxc70 · Apr 25th, 2018, 20:32

Its on the seal that splits the housing. I think its the original still....i think.
I was thinking on clamping the hose that comes out of the radiator replace the seal if there is one and put it back i think it will burp from the radiator reservoir and I can add some destil water? I really dont want to drain everything

oragex · Apr 25th, 2018, 22:43

The coolant reservoir will drain - to empty it first undo the electric connector underneath, and push with a screwdriver the upper tiny hose, then lift it to pour it.

The radiator will not drain, but the block will leak some fluid.

As for the housing, the power steering pumps needs be tossed without disconnecting it.

Anubisxc70 · Apr 26th, 2018, 22:48

So if i clamp all the hoses i will not loose much coolant and it will much easier to burp it?
Thank You

Anubisxc70 · Apr 27th, 2018, 13:56

I only can find the gasket to the junction between the housing and the engine block. Not the top of the thermostat housing .

Like we see in here..
https://www.ebay.co.uk/itm/VOLVO-V70...gAAMXQY8JRhk4m

Apr 25th, 2018, 18:57	#1
Anubisxc70 Master Member Last Online: Sep 25th, 2021 23:16 Join Date: Aug 2017 Location: Sturminster Newton	Help here pls 2004 XC70 D5 awd Hello About a month ago i had my time belt done by the book all Volvo parts including the coolant. Today i have notice a small leak on the thermostat housing. Do i have to take all the coolant out (noooooooo) or can i get away clamping the tube from the radiator and replace the gasket on the housing? Many Thanks

Apr 25th, 2018, 19:01	#2
jgjones095 Master Member Last Online: Feb 28th, 2024 22:04 Join Date: Feb 2013 Location: South wales	You can remove the themostat cover and top rad pipe without loosing much coolant. Where on the housing is it leaking? __________________ Who said Volvos were build to last? 2.4t V70XC Auto 2001 165k D5 185 XC70 M66 2006 202k

Apr 25th, 2018, 19:37	#5
jgjones095 Master Member Last Online: Feb 28th, 2024 22:04 Join Date: Feb 2013 Location: South wales	I am not sure if the d5 and petrol 2.4t engines are the same.... but the seal between the screw on lid and housing is the thermostat seal. Might I suggest getting a new themostat if going in. __________________ Who said Volvos were build to last? 2.4t V70XC Auto 2001 165k D5 185 XC70 M66 2006 202k

Apr 25th, 2018, 20:15	#6
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	Grab 1L of distilled water just in case. If the coolant level gets low it will show a message in the instrument panel. Did you install a complete housing or just split it open and place the thermostat inside? Depends where exacting is leaking, at the seal with the engine block or at the seal that splits the housing. It's not hard to drain the coolant at the radiator peacock - just careful as it's fragile(tighten with fingers only). Once the coolant back in place it's important to follow the correct air burping procedure. __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Apr 25th, 2018, 22:43	#8
oragex Premier Member Last Online: Jul 26th, 2021 21:24 Join Date: Jun 2013 Location: Coldnada	The coolant reservoir will drain - to empty it first undo the electric connector underneath, and push with a screwdriver the upper tiny hose, then lift it to pour it. The radiator will not drain, but the block will leak some fluid. As for the housing, the power steering pumps needs be tossed without disconnecting it. __________________ Several Volvo Repair Videos https://www.youtube.com/playlist?lis...ECTts0FSVSOT_c

Apr 25th, 2018, 19:08	#3
petey Master Member Last Online: Sep 11th, 2023 13:10 Join Date: May 2009 Location: Chippenham	Probably wise to cover over the alternator as that doesn't appreciate too much water being poured into it directly, but don't be too keen to save a few £ and then run up a much bigger bill in the process....

Apr 25th, 2018, 20:32	#7
Anubisxc70 Master Member Last Online: Sep 25th, 2021 23:16 Join Date: Aug 2017 Location: Sturminster Newton	Its on the seal that splits the housing. I think its the original still....i think. I was thinking on clamping the hose that comes out of the radiator replace the seal if there is one and put it back i think it will burp from the radiator reservoir and I can add some destil water? I really dont want to drain everything

Apr 26th, 2018, 22:48	#9
Anubisxc70 Master Member Last Online: Sep 25th, 2021 23:16 Join Date: Aug 2017 Location: Sturminster Newton	So if i clamp all the hoses i will not loose much coolant and it will much easier to burp it? Thank You

Apr 27th, 2018, 13:56	#10
Anubisxc70 Master Member Last Online: Sep 25th, 2021 23:16 Join Date: Aug 2017 Location: Sturminster Newton	I only can find the gasket to the junction between the housing and the engine block. Not the top of the thermostat housing . Like we see in here.. https://www.ebay.co.uk/itm/VOLVO-V70...gAAMXQY8JRhk4m

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