Mercedes w203 Auxiliary Water Pump -Test - Removal - Replacement c200 c180 c230
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- Опубліковано 9 вер 2024
- Playlist with all the videos I made about this car :
• Mercedes w203 C class ...
Here is a simple example of how to use the auxiliary water pump to diagnose other components which are related to the air conditioning system.
For example the control panel with the dials is a part that can fail , but it's easy to put the blame on a AC Compressor for the lack of cold air ..
Disclaimer :
This youtube channel :"doit_vehicles " can not guarantee that this information suits to your car . "doit_vehicles " assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Use this information at your own risk .
hello! I know i am commenting 4 years too late but oh my god…You have helped me so much!!! way more than the mechanics than mechanics that specialize in european cars! I continue to get the check engine and they can’t seem to figure out the solution. You my friend, have helped & educated me so much on my C230. Subscribing to never lose this knowledge!!!!!
That's very nice to hear 😊
Thanks for the good information. With the aux pump out it would be a good idea to inspect the hoses for cracks and deterioration and if necessary replace them at the same time.
Hi
I've checked continuity from positive connector to positive on battery and got nothing. I've also connected the pump direct to battery and nothing also. What do you suggest?
Are these known to leak? I have antifrezze pooling around the groove at the center of this on my C320.
Mine is leaking as well. I will replace it this weekend.
@@PlantbasedCurt I had mine replaced, not too expensive to have done.
Did the replacement of the auxiliary water pump stop the leak?@@PlantbasedCurt
Thanks bro
Hello my fan stays on as soon as I start the car and it's saying check coolant but the coolant is fullwhat could be the isuue
I have the issue, that the pump works with 12 V directly apllied to it, but won't with running engine, ignition on nor REST-Function activated via the panel.
Pump itself shows 3,6 Ohms on the multimeter. Wires and fuses are ok. Any ideas?
does it get 12 v at the connector ?
@@doit_vehicles
Not under the said circumstances.
@@doit_vehicles
Multimeter reads 0.05 Volts at the connector, when engine is running and the heating is set to maximum. I think, this is a CAN signal. I have continuity on both wires. Pump runs with 12V from a pulser. Graphite sticks in the motor are ok.
Is it possible, that the SAM Front kinda "forgot", that the pump is there?
@@MS831985 i have same problem, minus connector of pump has continuity with minus on baterry, but plus connector hasn't continuity with plus on battery. Idk what to check. Have you solve your problem?
@@MS831985 my pump unplugged shows 500ohms, but it's damaged and won't start
Hello, can some write auxilary pump part number for me pls. My c180 has no pump at all and hoses connected directly, for that reason i dont have hot air inside only mild wormish...
Can the car overhreat because of this pump not working ?
What if no hot or even warm air goes in the vents/windshield? i hear a knocking or tapping behind radio, to the passenger side ( right) and shuts down after 1 minute or so. That broken mechanism may be the cause? Thank you.
There are flaps activated by actuators . Yes its most likelly that those failed ..
Hello - I'm chasing down an issue with Air Conditioning not blowing cold air. I scan tool reads "M13 Open circuit at Coolant circulation pump" Does this pump affect the AC as well?
Yes
@@doit_vehicles Thanks for the reply. Changed out the pump. Still no AC. If that’s not bad enough, the scan tool is now on the fritz. Saying not compatible with the vehicle. Been using this tool over a year with no issues. SMH.
do this pumps stay on after you turn off the engine like on the ml class (w163) or not thanks
only if the keys are in the contact and you turn on the AC
I wish somebody could help me check the whole system of interior heating. I have only cold air. My pump works taking the +from the battery. I activated the Aux pump and turned again the heater on, but I think i might have another problem.
How can i check if I have an acutator problem or the inner radiator?
Hey, Erald,
I would suggest you have a scanner connected to your car and check the air condition system for fault codes. On mine I had two faulty step motors which are inside the HVAC (Heating Ventilation and Air Conditioning, example- facebook.com/MaxiconCarAircon/posts/hvachvac-stands-for-heating-ventilation-and-air-conditioning-its-purpose-in-a-ve/2753018171402319/). These motors were controlling the air stream and stuck on COLD position.
There could be more reasons for it, but you would definitely need to attach a advanced odb2 scanner and have a look.
How to flash heater core this car??
Hi, i have trouble with the wires. my positive wire on the pump does 12v with the plus on the battery.(without anything on) But its not ground wire.. My negative is directly with the minus(ground on the car)....?
does the pump work ?
First it didnt work, but i fixed it and now when turned on heater the pump turns on in intervals, thats why i cloud not catch the 12v constantly. Now working fine, most of the pumps can be fixed like mine if not working
@@kristianhristov6182 heloo i have the same problem how you fixed and repair ?
Hey i have same problem with wires, how do you solve your problem?
@@01sYs The brushes are on their way, but still have more life, just release the brush wires, theres more space, i've fixed about 30 pumps. That's the problem with all of them. No problem with power cables.
Is it absolutely necessary to drain the coolant?
I'd love to know that too...doesn't make much sense why...
Would love an answer to this as well
@@KRBISSONNETTE I was able to change the part without draining the coolant.
@@frankguarino I was able to change out the part without draining the coolant.
Hey please let me have your whats app please my Mercedes is stuck on P my break is not turning the brake light my break light was burnt I changed and I changed the the beak sensor and nothing what do u recommend me to do ?
P0
?