Mercedes-Benz Sprinter 3500 adaptive cruise problems

Filed May 27, 2025 · Brakes, Driver assistance · FL

During a drive in an extended rain shower,the adaptive cruise control stopped working, and the accident avoidance system ceased to function, giving multiple warnings on the dashboard information system. It took 2 days to dry out and start functioning again.

Filed Apr 24, 2024 · Driver assistance, Steering · TX

I was driving my van and out of nowhere it locked up and power steering malfunctioned. I was in NY at the time. Tried to get MB to help explain what was happening. Said they would send a Tech out. Found out they were going to send a tow truck and that was it. I had several pups on board and had to get them safe. So I figured out how to drive it with no power steering all the way back to Houston. While driving we got into some rain. Which for whatever reason the rain kicked the power steering on for just 5 or less seconds. This kept happening on and off while in wet road conditions. I was freaked out as the change made the steering go from impossible to beyond sensitive. We could have so easily flipped had I not been paying attention and driving at a slow speed. This also made all the safety features not accessible. No blind spot, cruise control, lane change or any of the important functions this van is equipped with. I would like to note that MB had to replace the engine due to a defect. Took 4 plus months. I have had issues ever since. Engine light came on all 4 of my trips. I know one that was the reason is VOX sensor. Fixed it and then happened next trip. Plus other sensors replaced. This van has been horrible! Bought it and was told they run up to 500k and these new engines they expect to see a million miles. I can’t even get it to 100k I called MB USA and started a complaint. They acted concerned and would contact me within 48 hours. Never to hear back from anyone. This was the same response when the engine malfunctioned. I was going to be given a loaner van and never heard or could connect with anyone.

Filed Apr 6, 2024 · Acceleration, Driver assistance · FL

Mercedes Benz 3500 XL Sprinter motorhome, 2020 chassis. May 2023 MB did several recalls & software updates which MB USA headquarters said those changes could've affected the Cruise Control & Adaptive Cruise Control because these systems worked excellently until May '23, in my local MB Sprinter service. These systems have not worked more than 2% of the time. MB keeps changing items with no improvement. I told them to test on I-95 or The turnpike, as that's when we use it safely. Service tech said they're not allowed to test it there; we told them that's when it won't work, when we need it. Dozens of trips keep proving MB needs a permanent fix for the safety features we paid & need. I KEEP TRYING TO ADD MY 10 SECOND VIDEO CLIP BELOW BUT YOUR SITE WON'T TAKE IT. IT SHOWS the Cruise Control 3 blinking BLANK cursors on dash monitor where the mph Cruise miles #s setting should display. I showed this to my local MB service who sent video to MB USA HEADQUARTERS. Under my active Warranty they need to CHANGE the WHOLE CRUISE CONTROL SYSTEM. THESE bandaids are exhausting time & resources for all of us. Now their engineers say it could be the seat sensor. I've hamstring pain & need a seat cushion while driving. This EXCUSE is FAULTY like their FAULT CODES, as randomly I don't use my seat cushion & Cruise Control & thus Adaptive Cruise Control won't work. Thank you for your help! [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 8, 2023 · Acceleration, Driver assistance · CO

Emergency brake assist, distance sensing and adaptive cruise control randomly and intermittently deactivate while driving. In a recent 8-hour highway trip this deactivation occurred 7 times, sometimes correcting itself with no driver intervention, and other times remaining disabled for hours and hundreds of driving miles. Durning motor off and restarting occasionally reset the issue, but many times it did not. When these systems disable, the van’s speed rapidly decreases and may cause other vehicles to hit the rear of the van, or cause van drivers to panic and/or lose control of the vehicle. Random and unpredictable electronic failures such as this are a definite hazard and need to be addressed by the manufacturer.

Filed Jun 28, 2023 · Acceleration, Brakes · TX

I'm getting wheel sensor errors and the vehicle goes into limp mode and disables the cruise control, even after replacing the sensors. Very frustrated with this dangerous situation!

Filed Feb 23, 2023 · Acceleration, Brakes · FL

We have a 2019 motorhome on a 2018 Mercedes Sprinter chassis. We are concerned about the wheel speed sensor failing. Three out of 4 sensors have already failed and been replaced on ours and Mercedes will not replace the 4th sensor until it fails. When this sensor fails it affects the ABS brakes and the braking distance is increased which can cause an accident. The cruise control is also affected and could increase speed on its own. The ESP can also be affected and can increase the risk of skidding and accidents. We have spoken to many other motorhome owners with the same chassis and they have also had problems with the sensors. Mercedes is aware of this problem and we feel they should replace all the sensors before they fail and cause a serious accident and injury or death. We would like to travel to remote areas of our country but haven't done so because there is no place to get the sensor replaced if it fails. We have spoken to Mercedes Benz of Sarasota FL and Mercedes Corporate and they are unwilling to do anything to replace the 4th sensor.

Filed Dec 15, 2022 · Airbags, Body · FL · crash

The above are wouldn't allow me to place a check mark in the appropriate boxes. In the Standard Vehicle Components and ADAS sections, I was unable to check the boxes, but our vehicle contains ALL of the items in the first and second sections. The vehicle was dropped off at Lazy Days, Tampa on October 21, 2022 and so far they have been unable to provide an estimate or advise when we may receive our repaired motorhome. This dealer has a reputation for very poor follow-up. If you provide an email, I can send you the items to be checked. Despite going through two highway barriers at about 40 to 50 mph, the air bag system failed to deploy. The vehicle stopped as we ran into a fence at an angle of ten to fifteen percent. We luckily dodged five opportunities to be killed. My wife jumped out of the vehicle when it stopped and screamed so loud I could not believe it was her. I've been married 28 years and was shocked at her condition. I had to hold her to quiet her. The first hint of a problem was the brakes failed and the cruise control seemed to increase speed, but I'm not absolutely sure of this, but it felt like it. There are two Tiffin reps at Lazy Days, which I wrote about this, twice, and called leaving a message and they have not sought to get in touch with me. The supervisor, [XXX], of the intake service advisor, [XXX] said she would be in touch. I told her there was so much wrong, we understand if it took longer than her usual case. When it was about a month in, I called and discovered he no longer works there. They failed to assign someone to let us know of any progress. I called and left messages for [XXX] (Lazy Days employee) and wrote two emails and he also failed to get in touch, but he assigned [XXX] who called us asking what was wrong with our coach. I was beside myself. [XXX] failed to even read the invoice! I told her to read the invoice and call us back. Ran out of room. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

Filed Jul 6, 2022 · Brakes · WA

This vehicle suspends cruise control and breaking assist without notice. These systems become unavailable sometimes for days. While driving downhill, you suddenly lose speed control requiring excessive manual breaking. The problem is dangerous because you suddenly lose the ability to maintain cruise control. Breaking assist is lost and suddenly appearing people, bicycles or cars are at risk. A call to the manufacture, Mercedes-Benz yielded no help. They said they had never heard of this problem.

Filed Dec 1, 2021 · Airbags, Driver assistance · 125 miles · CO

The contact owns a 2022 Midwest Automotive Passage MD4 RV built on the chassis of a 2020 Mercedes-Benz Sprinter 3500. The contact received notification of the federal safety agency Campaign Numbers: 21V410000 (Electrical System, Air Bags) and 21V411000 (Electrical System, Back Over Prevention). The contact stated that while driving at an undisclosed speed, the cruise control and Forward Collision Avoidance would not activate as needed. The dealer was made aware of the recalls but informed the contact that appointments were not available until March 2022. The vehicle was not diagnosed nor repaired. The manufacturer was not made aware of the failure. The failure mileage was 125.

Filed Nov 18, 2021 · Driver assistance · 18,000 miles · LA

The contact owns a 2018 Mercedes-Benz Sprinter 3500. The contact stated that while operating the vehicle, the ABS, check engine, and cruise control warning lights illuminated. The cause of the failure was not yet determined. The contact indicated that the vehicle was recently serviced under the federal safety agency Campaign Number: 21V042000 (Electronic Stability Control) however, the failure occurred. The local dealer and manufacturer were notified of the failure. The approximate failure mileage was 18,000.