V6 gurgle noise behind the dashboard centre?

biffa75 · 19th November 2020, 12:06

Hi folks,

I decided to take the 75 out this morning tondo the family shop and with gentle revs around 1500rpm a water gurgling noise could be heard behind the centre of the dash.
Haven't noticed the coolant level drop. Tried looking into the V of the engine, can't see a great deal but possibly slightly damp but can't say if it's coolant.
After a short run of about 13 miles i couldn't hear the gurgle anymore. Is it normal? Or airlock in the matrix?

Thanks in advance

Rob

rrobson · 19th November 2020, 12:19

Air lock in the heater matrix

Don’t think I’ve had a v6 that hasn’t done this...

trikey · 19th November 2020, 12:29

Needs a proper bleed to remove the trapped air.

biffa75 · 19th November 2020, 12:51

Thought as much, bummer. I've seen people me toon a vacuum bleeder? Anyone any recommendations on th best method to bleed the coolant system?

Thanks
Rob

suzublu · 19th November 2020, 13:16

Quote:

Originally Posted by biffa75

Thought as much, bummer. I've seen people me toon a vacuum bleeder? Anyone any recommendations on th best method to bleed the coolant system?

Thanks
Rob

Courtesy of Simon.
https://www.the75andztclub.co.uk/for...5&postcount=15

biffa75 · 20th November 2020, 00:17

Thanks for the link, much appreciated. I'll take the top cover off and see if I can see any signs of any leaks etc and if all is well, I"LL try and give it a bleed.

Thanks
Rob

Shuriken_57 · 22nd November 2020, 17:04

Hello gentlemen, I’d like to purge my cooling circuit.

Can you tell me where the radiator bottom hose bleed screw is on the kv6 2.5?
I found a drain screw on a hose near the battery.
Thank you

19th November 2020, 12:06	#1
biffa75 Trader Mk1 2004 tourer cdti + MK1 2003 Saloon CDT Join Date: Nov 2015 Location: west yorkshire Posts: 495 Thanks: 106 Thanked 91 Times in 57 Posts	V6 gurgle noise behind the dashboard centre? Hi folks, I decided to take the 75 out this morning tondo the family shop and with gentle revs around 1500rpm a water gurgling noise could be heard behind the centre of the dash. Haven't noticed the coolant level drop. Tried looking into the V of the engine, can't see a great deal but possibly slightly damp but can't say if it's coolant. After a short run of about 13 miles i couldn't hear the gurgle anymore. Is it normal? Or airlock in the matrix? Thanks in advance Rob

19th November 2020, 12:19	#2
rrobson I really should get out more....... 75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25 Join Date: Feb 2010 Location: Pontefract Posts: 2,644 Thanks: 17 Thanked 295 Times in 218 Posts	Air lock in the heater matrix Don’t think I’ve had a v6 that hasn’t done this... __________________ How to view a car - everything you need to help you inspect a used car VIS motor tester avalible to local members Injector removal tool and auto gearbox pressure tester now available

19th November 2020, 12:29	#3
trikey Premium Trader Rover 75 Join Date: Nov 2010 Location: Devon Posts: 33,772 Thanks: 8,837 Thanked 14,831 Times in 8,030 Posts	Needs a proper bleed to remove the trapped air. __________________ Lest we forget..

19th November 2020, 12:51	#4
biffa75 Trader Mk1 2004 tourer cdti + MK1 2003 Saloon CDT Join Date: Nov 2015 Location: west yorkshire Posts: 495 Thanks: 106 Thanked 91 Times in 57 Posts	Thought as much, bummer. I've seen people me toon a vacuum bleeder? Anyone any recommendations on th best method to bleed the coolant system? Thanks Rob

20th November 2020, 00:17	#6
biffa75 Trader Mk1 2004 tourer cdti + MK1 2003 Saloon CDT Join Date: Nov 2015 Location: west yorkshire Posts: 495 Thanks: 106 Thanked 91 Times in 57 Posts	Thanks for the link, much appreciated. I'll take the top cover off and see if I can see any signs of any leaks etc and if all is well, I"LL try and give it a bleed. Thanks Rob

22nd November 2020, 17:04	#7
Shuriken_57 Avid contributor Rover 75 Join Date: Jan 2019 Location: Freyming-Merlebach Posts: 212 Thanks: 104 Thanked 21 Times in 12 Posts	Hello gentlemen, I’d like to purge my cooling circuit. Can you tell me where the radiator bottom hose bleed screw is on the kv6 2.5? I found a drain screw on a hose near the battery. Thank you