What's inside your 1999 ML320 Mercedes Benz Electronic Stability Program ESP Module Controller

Hi Everyone,
Be sure to checkout my other related video's when I actually change out this defective controller to solve multiple warning lights on the dash.
This video is just to see what's inside the actual unit if your into that kind of thing.
Thanks
Joe

[@emfarfan]

You are a curious guy😂. They are known for cold solder joints, I found a company that claims to repair them while searching for a replacement. If my replacement is bad I may find them again for a repair but trying a used module was cheaper and maybe I will be blessed 😇

[@diegopereiraperes3481]

Hi, I'm from Brazil so I'm using Google Translate. As I saw your vast knowledge on Mercedes ML320 maybe you can help me. my ML320 year 2000 AB 54 V6 Petrol. It stopped operating 5 years ago and remained in the garage, I'm doing the repairs at home, I'm an electrical technician, I've already tested and replaced all the fuses and relays that didn't work. Then the ignition part works well on the coils and spark plugs. When I breathe fuel through the throttle body it works. I removed the old fuel, cleaned the fuel tank, replaced the complete pump system, filter and hoses. Where is the thinner hose that comes out of the fuel filter connected to? Is there a fuel pressure sensor? If there is a pressure sensor, where is it? Here I have no signal at the fuel pump, but if I inject + 12 v into Fuse 38 the fuel pump turns on. I cleaned and replaced the injection nozzles and tested them all out and they are ok. However, I don't have a negative pulse on them, just 12v +. The OBD2 Scanner I have does not show any error in the ECU, but it does show an error in some sensors.

[@falklan]

Heya! I wonder if you found the answer yet. The fuel filter has an integrated pressure regulator. Also you could try a sensor adaption reset which should reset the stored sensor data and cause a recalibration cycle. I do hope this helps in your quest to get your ML320 up and running!!! After thinking about this, disconnecting the battery over night should reset everything for you. If not over night, keep it disconnected for 24 hours and that should be far longer than necessary.

[@xcChen-ge1ln]

Does the replaced one need to be programmed?

[@joesnowmobiles]

No as long as you use the same part #

[@xcChen-ge1ln]

@@joesnowmobiles thanks a lot for your reply. it is surpring for me. I thought all the ECUs need to be programs. some online companies even offers that serveice. eg, write VIN into the new ECU. do you happen to know if the replacement of AAM for this model needs to be programmed? I