Quote:
Originally Posted by omgboost
When you do work like that to the coolant system, don't they recommend you bleed the system of air?
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Good question, there is a electric pump coolant bleeding process, but I have never gotten it to work unless the inter-cooler coolant tank has been low.
How to bleed the system using the electric pump process.
1. Connect battery charger.
2. Switch on ignition.
3. Set heater to maximum temperature (set to "Automatic"), turn fan to lowest setting.
4. Depress accelerator to maximum for 10 seconds. The engine must not be started.
5. The bleeding sequence has been started by depressing the accelerator and takes about 12 minutes. (The electric coolant pump has been activated and switches off automatically after about 12 minutes.)
6. Afterwards, fill coolant expansion tank to 250 ml above "Max". (Observe service instructions specific to vehicle.)
7. Check cooling system for leaks.
8. If the bleeding sequence has to be repeated (e.g. if there are leaks in the cooling sys- tem), allow DME to reset completely (remove key from ignition for about 3 minutes), then repeat procedure from step 3.