Hello CommunityI search before post my problemmy mini stays in 105° celsisus & didn't go low, the car can go up to tp 108°and stuck on this temperature, I purged the cooling systemAnd everything was in order the fan went off at 102 degrees to go down to about 90 degreesYesterday I put the heating because it was cold out and here the problem is back temperature blocked at 105° I'm desperate I don't know what to do....
sorry for my english im french & i already asked a couple of group no one got the solution....
im living in middle of no where , no mecanics arround 100 miles

Thanks for reading & help.

 

The thermostat is possibly bad.

Also, is the coolant level low in the coolant reservoir?

 

I haven't checked the temperatures directly on my Mini, but these cars run rather hot by default so that may not be a problem. With a 50/50 coolant mix and a pressurized system it will not start to boil until well above 100C.

Is this new behavior...like, was it running cooler before? Are you getting any warnings on the instruments? Any OBD codes for the thermostat? If "no" to all of those then it's probably fine.

As a test, you can try turning on sport mode, or try turning on the air conditioner. Both of those are supposed to tell the ECU to drop the temperature. If that works then your thermostat is probably okay.

Again, I don't have direct experience measuring temperatures on the car, but I think this is all correct based on what I've learned.

 

My coolant temperature has never risen higher than 100.5 C. I live in Houston, Texas.

 

So my guess is you're running sport mode or with the A/C turned on, both of which will lower the coolant temperature. In normal running 103-107C is apparently the set point; running hotter apparently helps with efficiency.

Between the glycol mix and the cooling system pressure a Mini shouldn't start to boil over until somewhere in the 115C range.

 

Never sport mode, nearly always A/C.

 

105c is the setpoint for the car (normal).

Check your coolant level, and then drive the car and let it reach operating temperature. Once the engine is at 105c, hold the accelerator pedal to the floor; you should see the temperature drop.

 

so strange I play again with the internal fan of the vehicle and the fan fires at 102 degrees now ...
about the coolant level , he is on the same level not lower.

 

no warning nothing
Its rigHt ! Not have sport mode button but i putted the AC i ear the converter start & temperature goes down.

 

I need to change my silentbloc but i didnt know wich one i need to change
anyone ? Car vibrating when push from neutral to first gear ....big vibration
need to stay on the clutch more than i need.....for not have a lot of vibration inside the car

 

If I had to guess given the symptom I'd say the lower mount (under the engine). That one's fairly easy to change, or you gan get a polyurethane insert for it.

 

Thanks sir ! Any link to recommand for part?any tuto ?

 

Well, you can just buy a new part, or you can try the poly insert. I don't know if it's available where you live but this is one option:

https://www.powerflexusa.com/shop/pf...=1448#attr=626

The lower link is pretty easy. Just jack up the car and it's right there. You can loosen the two bolts to remove it, or swing it down and put in the poly insert.

Note that there's no guarantee that this is your problem, it's just a possibility. The engine or transmission mounts could be worn as well, or it could be something else.

 

thanks mate ! I bought the whole part , gear part & motor part too (support)

 

Good luck. The gearbox and motor mounts are a bit more work to replace, but not too bad if you're experienced working on cars.

See if you can find a procedure online for those.You need to support the engine with a jack and then remove a bunch of stuff in the engine bay, and there are some tricky bolts to get to. But like I said, I did it and it wasn't too bad.

 

thanks mate but for be honnest i go give this task to real mecanics i not have this knowledge 😔