The car has been serviced by MB dealer and they cannot find the fault. If you continue to use this site, you consent to this use of cookies. I was driving my S550 and came to a red light. The S550’s swift takeoffs support Mercedes’ claim of 0-60 mph acceleration in 5.4 seconds. A vehicle that hesitates while accelerating or while driving up a hill may have a weak fuel pump. A solid mechanic who’s not afraid to get in there and get the job done. Learn more about the 2007 Mercedes-Benz S550 4MATIC - Article. Search CarComplaints.com for these popular complaint phrases... CarComplaints.com ® is an online automotive complaint resource that uses graphs to show automotive defect patterns, based on complaint data submitted by visitors to the site. 110 Control systemsCOMAND audio CD/audio DVD/MP3Submenu overviewi The … Highway-speed passing power is particularly strong. Problem with your 2007 Mercedes-Benz CLS550? The current and failure mileages were 32,000. 2021 Search in MERCEDES-BENZ S550 2007 W221 Owner's Manual online. Turn off the engine and restarting it … So how do you find out what problems are occurring? I have owned the car since 40,000 miles and it now has 100,000 miles. Updated 5/9/11 updated 05/18/11 updated 06/01/11, The contact owns a 2007 Mercedes Benz S550. You may file your own complaint by calling the NHTSA Monday-Friday 8am to 8pm at (888) 327-4236, TTY: (800) 424-9153. The Mercedes-Benz S400 HYBRID uses a 3.5-liter V6 gasoline engine, a magneto-electric motor and sophisticated hybrid electronics to produce 30 percent better fuel economy than a comparable S550 model. Once the mechanic gets this information they can begin to fix any potential issues. Mercedes-Benz the radial knuckle of the front strut may fail. Febreze Car Air Freshener Leaks Allegedly Damaged Cars, read stories from drivers who praise our work. The mechanic will then provide a detailed inspection report outlining the nature of the hesitation and the cost of any repairs that need to be made. Engine’s that are running inefficiently will begin to show signs like hesitation which will only become worse over time. associates in automotive technology. the engine remained running; however, the vehicle would not accelerate. If it is not, the mechanic will remove the throttle positioning sensor and the wiring and replace them. While driving 65 mph, the vehicle lunged forward and backwards and then stopped without warning. The vehicle was repaired. This has happened at least 10 times over the past 3 month period. An engine that is hesitating to accelerate is most likely dealing with a fuel/air mixture that is too lean. A top-rated mobile mechanic will come to your home or office to determine the reason why your vehicle is hesitating while accelerating. We don't sell/share your email. 2007 S550 Mercedes has very erratic acceleration and shifting Question by Edward Shorter posted 11 months 4 weeks ago in S-Class My 2007 Mercedes S550 with 70,000 Miles has very erratic acceleration and shifting. The vibration has always been there. Updated 01/17/08, Get notified about new defects, investigations, recalls & lawsuits for the. 2007 Mercedes-Benz S-Class Repair Histories. Autohaus AZ doesn't seem to carry it. Whereas the current model had soft, rounded forms, the new car’s flanks are long stretches of creased sheetmetal, punctuated by gigantic wheel arches. It may also be gas pedal accelerator position sensor. Any duplicates or errors? Up front, there’s a whole new attitude. California consumers may exercise their CCPA rights here. Our certified mobile mechanics come to you 7 days a week between 7 AM and 9 PM. Dirty/failing fuel injectors: Fuel injectors spray fuel in a fine mist into the cylinder where it is mixed with air and ignited by a spark plug. Luckily for us, Mercedes-Benz got it right with the W221 S-Class. A vehicle with a combustion (gas or diesel) engine requires an exact mixture of fuel and air to run efficiently. Fuel injectors may become dirty over time and not be able to provide as much fuel to the cylinder as is needed. The car rpms were increasing but the vehicle was crawling at less than 5mph. If the mechanic believes that the mass airflow sensor has gone bad or is failing, he or she will first examine the sensor for any superficial damage. are trademarks of Autobeef LLC, All rights reserved. The manufacturer inspected the vehicle and advised the contact to drive in second gear rather than first. The mechanic will also ensure that the sensor is wired correctly and that no damage has been done to the wire harness. The contact noticed that while idle in traffic if he removed his foot off of the brake pedal or accelerator pedal it would surge forward. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.