R50/53 Over heats in 2 mins and AC not working
#1
Overheats in 2 mins and AC not working
2006 r50
Gents the car starts and over heats in 2 mins from start. The temp gauge goes to full. We also noticed the AC not working.
I thought maybe the belt broke, but no. Turning and on track.
Coolant appears full, but upper hose is cold.
Thermostat, right?
We recently installed a new thermostat, OE but not genuine BMW
Looking for ideas to help get this car back in service. All ideas appreciated
Gents the car starts and over heats in 2 mins from start. The temp gauge goes to full. We also noticed the AC not working.
I thought maybe the belt broke, but no. Turning and on track.
Coolant appears full, but upper hose is cold.
Thermostat, right?
We recently installed a new thermostat, OE but not genuine BMW
Looking for ideas to help get this car back in service. All ideas appreciated
Last edited by ssoliman; 06-18-2023 at 07:03 PM.
#2
That's a very short amount of time for the engine to go from stone cold to overheating, even if the thermostat was bad. Are you sure the engine is actually overheating and it's not a faulty gauge/sensor?
If it is actually overheating than I would suspect a blown head gasket.
Get that sorted before worrying about the AC.
If it is actually overheating than I would suspect a blown head gasket.
Get that sorted before worrying about the AC.
The following 2 users liked this post by mrbean:
ghostwrench (06-24-2023),
ssoliman (06-18-2023)
#5
That's a very short amount of time for the engine to go from stone cold to overheating, even if the thermostat was bad. Are you sure the engine is actually overheating and it's not a faulty gauge/sensor?
If it is actually overheating than I would suspect a blown head gasket.
Get that sorted before worrying about the AC.
If it is actually overheating than I would suspect a blown head gasket.
Get that sorted before worrying about the AC.
Good points. I'll plug in inpa and see if I get a different reading. And I'll time it again. It was very quick.
#6
Good thought. I'm sure. It has been operating normally for about a year now. No overheating issues. We installed the thermostat last summer.
#7
That's a very short amount of time for the engine to go from stone cold to overheating, even if the thermostat was bad. Are you sure the engine is actually overheating and it's not a faulty gauge/sensor?
If it is actually overheating than I would suspect a blown head gasket.
Get that sorted before worrying about the AC.
If it is actually overheating than I would suspect a blown head gasket.
Get that sorted before worrying about the AC.
seems it is a sensor issue, or sensor circuit issue. At 2 mins the gauge spikes. From cold to full as well as the reading in inpa. It throws code 280.
however the read out returns to normal in inpa shortly after. The gauge stays at full. First set of pics. High fan on.
I let it run and it came up to temp as normal. High fan on.
after restarting the engine. The gauge and inpa read normal. High fan off
and the AC works. I think I read in the Bentley that the AC clutch is opened under several conditions, maybe overheating being one. I’ll try and see if I can find it
pics to follow
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#8
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#11
found it. https://www.realoem.com/bmw/enUS/sho...diagId=11_3086
I may try cleaning the connector first
I may try cleaning the connector first
The following users liked this post:
jcolletteiii (06-18-2023)
#12
When I got my R53 2 weeks ago, I was having issues with the temp gauge going to full scale like that. It was resolved when I eliminated the X15 connector, and soldered all the wires direct to each other (my connector was in real bad shape)
Might want to double check and make sure you dont have corrosion down there!
Might want to double check and make sure you dont have corrosion down there!
The following users liked this post:
ssoliman (07-17-2023)
#13
When I got my R53 2 weeks ago, I was having issues with the temp gauge going to full scale like that. It was resolved when I eliminated the X15 connector, and soldered all the wires direct to each other (my connector was in real bad shape)
Might want to double check and make sure you dont have corrosion down there!
Might want to double check and make sure you dont have corrosion down there!
#14
When I got my R53 2 weeks ago, I was having issues with the temp gauge going to full scale like that. It was resolved when I eliminated the X15 connector, and soldered all the wires direct to each other (my connector was in real bad shape)
Might want to double check and make sure you dont have corrosion down there!
Might want to double check and make sure you dont have corrosion down there!
connector was toast. The clip broke off while I was removing the sensor
#15
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#18
Join Date: Nov 2021
Location: Under the car. As per normal.
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Available from at least these two vendors:
https://www.ecstuning.com/b-genuine-...g/12527511368/
https://www.pelicanparts.com/search/?q=12527511368
https://www.ecstuning.com/b-genuine-...g/12527511368/
https://www.pelicanparts.com/search/?q=12527511368
The following 3 users liked this post by Daftlad:
#20
Available from at least these two vendors:
https://www.ecstuning.com/b-genuine-...g/12527511368/
https://www.pelicanparts.com/search/?q=12527511368
https://www.ecstuning.com/b-genuine-...g/12527511368/
https://www.pelicanparts.com/search/?q=12527511368
I’ll have to search for a how-to on YouTube. Seems like it might not be that difficult
#21
#23
These help also:
https://www.ecstuning.com/b-schwaben...ieces/ce-70-2/
European Car Electrical Terminal Tool Kit - 12 Pieces
https://www.ecstuning.com/b-schwaben...ieces/ce-70-2/
__________________
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Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
MINI Guru/ MINI Owner Since 2004 | NEW Lifetime Part Replacement | Local Pickup
Milltek | Genuine MINI | Forge Motorsport | NM Engineering | ECS Performance | M7 Speed
Customer Service Hours: 8am-8pm EST|Sales Team Hours: 8am-11pm | SAT 10am-7pm 800.924.5172
The following users liked this post:
ssoliman (08-09-2023)
#25