Qashqai 2019 1.3 engine problem after thermostat replacement

[Ersin]

I just received the hoses. One fits, another one doesn't.
Can someone help me where can I fiind the thermostat houseing joint, the small one ?
I need for the small pipe, the connector.

[1CaDo1978]

Hi, any news? this is tricky. I don’t understood what are you searching for. Is it a Mercedes spare part or Nissan/Renault or something else?

[trout]

Apparently it’s the Mercedes thermostat housing with three bolts holding it together rather than the Nissan one which has no bolts.
If it can be fitted it will solve the issue.
S.

[1CaDo1978]

Apparently it’s the Mercedes thermostat housing with three bolts holding it together rather than the Nissan one which has no bolts.
If it can be fitted it will solve the issue.
S.

I know that, but I can not understand what kind of adapter he is searching for

[Ersin]

The hoses are also Mercedes brand. I bought wrrong one of them, without connector. I bought again one hose, with connector.
There is an issue that I have to solve: the Mercedess pipes are not straight, they make an angle of 45. Also the connectors, they make an angle of 45.
You see in pictures.
The hoses and pipes of Nissan are straight.
The Mercedes connectors are one way connectors. They can not be rotated.

[Ersin]

Apparently it’s the Mercedes thermostat housing with three bolts holding it together rather than the Nissan one which has no bolts.
If it can be fitted it will solve the issue.
S.

I know that, but I can not understand what kind of adapter he is searching for

You can not fit directlly the hoses into thermostat pipes. You need a special connector. Please see the Mercedes thermostat pipes vs Nissan pipes.

[Howlsatthemoon]

This modification of the Mercedes thermostat looks way too complicated with no guarantee all the different modifications will work, why not just change the Nissan thermostat every 3 - 4 years (if you intend to keep car) for piece of mind?

[Ersin]

This is a clue

Can You ask that guy that fitted Merc thermostat if this small pipe from Mercedes thermostat must be blocked or not ? Nissan Thermostat doesn't has this small pipe.
Or anyone knows about this small pipe ? What for is this pipe ?
Thanks.

[1CaDo1978]

This modification of the Mercedes thermostat looks way too complicated with no guarantee all the different modifications will work, why not just change the Nissan thermostat every 3 - 4 years (if you intend to keep car) for piece of mind?

We don’t need to modify the thermostat housing itself; it has the same size and shape. Both cars have the same engine, and the bolts are in the same position. We just need to adapt the hoses.
It’s not an impossible task; someone has already managed to do it.

[Howlsatthemoon]

[quote
We don’t need to modify the thermostat housing itself; it has the same size and shape. Both cars have the same engine, and the bolts are in the same position. We just need to adapt the hoses.
It’s not an impossible task; someone has already managed to do it.
[/quote]

3 weeks later and it still isn't fitted