|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Search | Today's Posts | Mark Forums Read |
|
BMW 3-Series (E90 E92) Forum
>
Cooling system Problem
|
|
05-14-2015, 03:01 PM | #1 |
Private
4
Rep 64
Posts |
Cooling system Problem
I just replaced my lower coolant hose and the radiator fan sensor, and have been flushing the coolant system down with a garden hose due to oil and gasket particles being in the system. My car is NOT overheating but the heat is not working, it blows cool, is this due to a thermostat problem? Could there not be heat because its hot outside and it has something to do with the climatecontrol?
Last edited by mazez; 05-14-2015 at 03:18 PM.. |
05-15-2015, 04:27 PM | #2 | |
Colonel
295
Rep 2,202
Posts |
Quote:
If you suspect broken hose particles have gotten into the system you should do a full system flush to make sure you get most of the debris/ oil out.
__________________
Retrofits: 322, 609, 6FL, 6NR, 6VC, 2TB..
Upgrades: Bilstein B8 Eibach Spring kit |
|
Appreciate
0
|
05-18-2015, 10:41 AM | #5 | |
Second Lieutenant
31
Rep 228
Posts |
Quote:
2. Do you have the center vent thumb wheel set to the hot air (right) side completely? |
|
Appreciate
0
|
05-24-2015, 02:59 PM | #8 |
Second Lieutenant
31
Rep 228
Posts |
Well I can only just guess but some other possibilities:
If the car was filled with a non-low-silicate antifreeze that could cause issues. If it got filled with the mix using non-distilled water there could be some serious mineral deposits. I don't know the history of my car apart from where it was serviced before I bought it, and it was all dealership and one Indy that is BMW specialist. I did a partial drain and was getting mad pebbles coming out. Supposedly the pump can sense both blockages and improper ratio of water to coolant which I would assume means it won't operate if one of those is detected. Have you pulled the codes? That would be my next step. A proper pressure test of the coolant system would be up there as well. You may be able to get tool capable of the pressure test on loan from the auto parts store. |
Appreciate
0
|
05-26-2015, 08:24 PM | #10 |
Major General
4276
Rep 9,206
Posts |
I know you bled the system but wouldn't hurt to do it again with the heat turned on and the front of the car slighly raised so the bleeder wil be higher than the heater core and the engine's head. Has worked for me in the past with air locks.
|
Appreciate
0
|
05-27-2015, 03:04 PM | #11 |
Private
4
Rep 64
Posts |
Ok so the heater core was actually clogged. The plastic piece floaty that shows you the coolant level snapped off and fell into the cooling system. I turned the heat on full blast and flushed it several times. When I disconnected the thermostat from the water pump the plastic piece along with gasket particles came out. Problem solved after a month of flushing the coolant!
|
Appreciate
0
|
06-09-2015, 03:07 PM | #12 |
New Member
1
Rep 15
Posts |
water pump and thermostat change
After I've completed the replacement of the water pump and thermostat, do I need to clear any codes? Do I need to run the water pump once I've got it all back together before running the engine? Something about putting it in start but not starting the engine then pushing down on the gas pedal 10 times? Any of this sound right?
Mike |
Appreciate
0
|
06-09-2015, 03:15 PM | #13 | |
Second Lieutenant
31
Rep 228
Posts |
Quote:
|
|
Appreciate
0
|
06-09-2015, 03:44 PM | #14 |
New Member
1
Rep 15
Posts |
Great, thanks for the clarification. I thought it was to depress the pedal 10 times. In any event, I appreciate the tip. Do you know about any codes I have to clear?
|
Appreciate
0
|
06-10-2015, 10:56 AM | #15 |
Second Lieutenant
31
Rep 228
Posts |
The only time I've gotten a shadow code doing the bleeding procedure was when I didn't hook the battery charger up, it threw something like "coolant pump low speed error" or something. No check engine/ses lights and have never seen it again since using a charger before/during the procedure. You need some way to scan for both obd2 and bmw spec. codes to be sure you don't have any codes associated with the cooling system though. I usually scan for codes before I start any work then clear DME adaptations and scan for codes as my last step before starting the engine after completing any repair/maintenance.
|
Appreciate
0
|
06-10-2015, 09:48 PM | #16 |
New Member
1
Rep 15
Posts |
Wish I had an OBD code connection to be able to scan for codes. After I completed the job, which only took me 5 hours ... nice! I took down the subframe and it gave me a bunch more room.
After the job though, the A/C didn't seem to get very cool. Anyway ... I'll take it to the dealer or a Bimmer shop and have them check the codes to make sure. Thanks for all the help! |
Appreciate
0
|
06-11-2015, 03:54 AM | #17 |
Private
4
Rep 64
Posts |
buy this , it'll make life a little easier
http://www.ebay.com/itm/BMW-INPA-Edi.../361303141322? |
Appreciate
0
|
06-11-2015, 05:53 AM | #18 |
General
17175
Rep 18,683
Posts |
If the pump failed there'd be one or two codes to clear, but they are BMW codes that you can't clear without a BMNW scan tool, OBDII doesn't clear them. However, I would think even if the codes were present the new pump would work without any issue.
__________________
A manual transmission can be set to "comfort", "sport", and "track" modes simply by the technique and speed at which you shift it; it doesn't need "modes", modes are for manumatics that try to behave like a real 3-pedal manual transmission. If you can money-shift it, it's a manual transmission. "Yeah, but NO ONE puts an automatic trans shift knob on a manual transmission."
|
Appreciate
0
|
Bookmarks |
Thread Tools | Search this Thread |
|
|