Qashqai J11 Coolant Reducing with no leaks. HELP!!

Forum for Engine, Exhaust, Drivetrain, ECU
xaote
Posts: 154
Joined: Mon Nov 01, 2021 11:29 am
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by xaote »

Buffy wrote: Sun Jun 26, 2022 10:35 am
xaote wrote: Sun Jun 26, 2022 8:58 am Coolent doesn't always go into the oil system when a head gasket fails. It can go from a coolent passage directly into the combustion chamber.
If it is loosing quite a lot of coolent, white smoke will be evident coming from the exhaust.
Can you get someone to follow you in another car?
Use all the rev range at slower speeds. Avoid high speed roads as the smoke won't be seen.
Good call , but if there is a water leak to combustion area , then often the cooling system becomes overly pressurised.
A sniffer test in the expansion tank will rule out this.

If still with a pin hole some place , or a waterpump bearing passing coolant when hot
I didn't know that. I'm surprised the garage didn't think to rule it out of the equation
J12 Acenta Premium 158 Xtronic

crysty97
Posts: 2
Joined: Tue Jul 12, 2022 5:54 am
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by crysty97 »

Hi.... i have the same problem with my Qashqai 2019 J11 1.3 DIGT
Tommorow i ll go to the service to check.... any news about yours? Thx
Nissan Qashqai J11 1,3 DIGT 2019
razaakif
Posts: 40
Joined: Sat Jun 18, 2022 10:29 am
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by razaakif »

crysty97 wrote: Tue Jul 12, 2022 5:57 am Hi.... i have the same problem with my Qashqai 2019 J11 1.3 DIGT
Tommorow i ll go to the service to check.... any news about yours? Thx
Nope. I changed the cap and it has made some difference. Going to garage right now. Will update you
crysty97
Posts: 2
Joined: Tue Jul 12, 2022 5:54 am
Qashqai Model: Mk.2 Qashqai Facelift - J11b (2017–2021)

Post by crysty97 »

756158ad-caa1-4325-9ed9-d2182bfb5f45.jpg

finally found my problem by myself :)

maybe the thermostat
Nissan Qashqai J11 1,3 DIGT 2019
Deleted User 10757

Post by Deleted User 10757 »

sorry - cant really see what you are identifying in that picture
razaakif
Posts: 40
Joined: Sat Jun 18, 2022 10:29 am
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by razaakif »

Buffy wrote: Tue Jul 12, 2022 3:42 pm sorry - cant really see what you are identifying in that picture
He is trying to show that he found the leak :) i guess
razaakif
Posts: 40
Joined: Sat Jun 18, 2022 10:29 am
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by razaakif »

xaote wrote: Sun Jun 26, 2022 8:58 am Coolent doesn't always go into the oil system when a head gasket fails. It can go from a coolent passage directly into the combustion chamber.
If it is loosing quite a lot of coolent, white smoke will be evident coming from the exhaust.
Can you get someone to follow you in another car?
Use all the rev range at slower speeds. Avoid high speed roads as the smoke won't be seen.
No white smoke. I took it to a 3rd garage and they did pressure test and said there is no leak. I have ordered the chemical test kit for head gasket. Let see. All the 3 garages have confirmed no problem with head gasket.
xaote
Posts: 154
Joined: Mon Nov 01, 2021 11:29 am
Qashqai Model: Mk.3 Qashqai - J12 (2021+) New Model

Post by xaote »

Best of luck.

Have you measured how much fluid you are loosing over a certain amount of miles?
J12 Acenta Premium 158 Xtronic
razaakif
Posts: 40
Joined: Sat Jun 18, 2022 10:29 am
Qashqai Model: Mk.2 Qashqai - J11 (2013–2017)

Post by razaakif »

xaote wrote: Sat Jul 16, 2022 3:34 pm Best of luck.

Have you measured how much fluid you are loosing over a certain amount of miles?
So I did the test but fortunately it stayed blue in colour. No colour change and there is no milky dipstick or oil cap. No bubbles in coolant in expansion tank. No overheating as well. I have booked appointment with Nissan so lets see whag they say
Deleted User 10757

Post by Deleted User 10757 »

OK - so if the logical has been checked - lets try the illogical route.

Have you only recently become the owner of this vehicle.

When you "top up " the coolant - are you filling it to the very top - or to the max mark.

This is not meant to be insulting to you , but the logical route for water loss apart from the water pump bearing passing liquid at high temperature , has been explored by you
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