Camera ineffective at night
I didn't notice a problem with the rear camera at night though. Maybe this was fixed in the 2020s?
Part 1: I recently took my 2014 ML350 to MB of The Woodlands with a copy of the Night Camera Software Update Bulletin in hand and asked to speak with a Service Advisor about my worthless camera system. The warranty has expired so I didn’t expect much.
Mark, the shop manager came out on the drive to speak with me. I showed him the bulletin and asked if he had the SW update (dated June 2014) still in their system some 6+ years after it came out. I also told him that I’d didn’t feel like gambling $195 diagnostic fee to see if he might have it. He explained that with their system now, he has to plug the car in before they can tell what SW updates my be available. He also said, he would do this for no charge.
15 Minutes after giving them the car, a service attendant came to report that they found the SW update and where in the process of running it. After that they would need to calibrate all the cameras. 45 Minutes after I arrived, the attendant came back and informed me that the car was being washed and detailed. 5 min later I was driving home. That night when I tested the system, there was a remarkable difference. The SW update was successful. MB of The Woodlands (Texas) has a awesome customer service attitude. If you are in this area or traveling through, I highly recommend them.
Part 2: In an effort to fix the problem by replacing the OEM bulbs with LEDs, I had been minimally successful. The LED bulbs were brighter but always issued the Bulb Failure warning and they would flash on and off intermittently. The SW upgrade did not fix that. I did however discover an extremely efficient 921 Bulb that works completely. Diode Dynamics sells and XPR921 smart bulb that they claim is error free and measures 720 Lumens after the heat up. When they are cold they claim that they measure over 1000 lumens. I’d have to say I agree. They are like a set of headlights on the back of the car.
https://www.diodedynamics.com/backup...cent-pair.html Don’t try and match them by searching their system for Mercedes Benz replacements. These work and fit great.
921XPR Bulb in ML350
Here is the result after the SW update and new bulbs. I’ve never been able to see 10’ behind the car at night, now I can see the entire driveway.










