2021 Mercedes-Benz E 450 Technical Service Bulletins

239 technical service bulletins (TSBs) are on record for the 2021 Mercedes-Benz E 450. TSBs are notes manufacturers send to dealers about repair procedures for issues seen in the field. They are not recalls and do not by themselves mean a vehicle has a fault.

• 10205814Aug 11, 2021Fuel system. Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning
• 10205801Aug 10, 2021Equipment. Intermittently after bus sleep the lower control panel LCP and upper control panel UCP may be panel UCP may be inoperable.
• 10205811Aug 9, 2021Equipment. The customer may note that the Dashcam feature is inoperable with one of the following complaints.
• 10205804Aug 9, 2021Equipment. Insufficient charging or no wireless charging with iPhone 12.
• 10205810Aug 3, 2021Equipment. The customer may note that the Dashcam feature is inoperable with one of the following complaints.
• 10205809Aug 2, 2021Equipment. The customer may note that the Dashcam feature is inoperable with one of the following complaints:
• 10199449Jul 2, 2021Equipment. Launch NCU - 2021030010 MY20-21 Various Add Supplementary Booklet to Printed Operators Manual
• 10195221Apr 20, 2021Electrical system, Equipment, Engine cooling. with engine M17x the ME Control Unit: "The Coolant Temperature is Below the Specified Temperature"
• 10191271Mar 24, 2021Electrical system. Engine switches off again when re-attempting Remote Start via Mercedes me App. This only occurs if the first Remote Start via the Mercedes me App was canceled and then started again. If the first attempt was stopped by unlocking the doors or if the engine ran for more than 10 minutes, then the second attempt is also successful
• 10191272Mar 19, 2021Steering. Steering wheel heater and/or Distronic cannot be activated. Remedy: Update software for steering wheel electronics control unit ("N 135 - Steering wheel electronics (LRE)"). Should the quick test carried out after the software update still show DTCs with the steering wheel heater and/or Distronic, replace the steering wheel control panels
• 10191274Mar 17, 2021Electrical system. Park Assist warnings (e.g. acoustic/visual warnings from parking sensors) without obvious cause
• 10191278Mar 16, 2021Electrical system. Fault in 12 V interlock circuit
• 10191275Mar 15, 2021Visibility (wipers, defrost, mirrors). Panoramic roof sunblind does not respond to voice commands
• 10191279Mar 12, 2021Electrical system. When ordering the electrohydraulic controller unit (EHS) using the part number stated on the EHS, the wrong parts may be ordered.
• 10191285Mar 10, 2021Steering. V5 SuperSport Steering Wheel - Grinding Noise
• 10191284Mar 10, 2021Electrical system. Fault message in instrument cluster to drive at max. 50 mph
• 10189410Feb 25, 2021Body and structure. Rework Left A-pillar Seam Seal
• 10189407Feb 24, 2021Electrical system, Equipment. In XENTRY diagnosis, the message "MBUX multimedia system control unit is defective (hard drive, internal fault)" appears while attempting to communicate with the MBUX multimedia system (A26/17)
• 10189406Feb 22, 2021Back-over prevention (rear camera). If the exhaust flap is operated or the drive program is changed within 10 seconds of the engine being started, an audible humming noise may emit from the speakers. New sound amp (N40/3) software is currently in development. This document will be updated once it is released. Meanwhile, avoid toggling the drive program or the exhaust flap with 10 seconds of an engine start to avoid the possibility of the complaint…
• 10189404Feb 19, 2021Electrical system. Complaint: Various causes are possible. The faults listed in the various causes do not all have to be present at all times. Some of these complaints may overlap. Rely on the faults listed in the Cause section for identifying the correct Remedy. 1. No start 2. Yellow or red instrument cluster message for 48 V on-board electrical system battery (G1/3) 3.
• 10189409Feb 12, 2021Back-over prevention (rear camera), Electrical system. Update Battery Management System Control Unit Software
• 10186148Dec 30, 2020Visibility (wipers, defrost, mirrors). Air Conditioning Intermittently Does Not Cool
• 10186140Dec 17, 2020Electrical system. Functional impairment of 48 V on-board electrical system
• 10186141Dec 10, 2020Electrical system. NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock
• 10186142Dec 9, 2020Electrical system. Unmotivated Reaction from Park Assist - model series 213 facelift / 238 facelift with option code 235 (active par- king assist) and option code 501 (surround view system)
• 10186135Dec 9, 2020Electronic stability control, Brakes. If the customer brakes sharply from a speed of > 30mph, without ABS intervention, there is a single cracking noise from the area of the ESP hydraulic unit
• 10205246Apr 9, 2018Equipment. Vehicle positioning inaccurate/implausible.
• 10205216Apr 9, 2018Visibility (wipers, defrost, mirrors). Window lifter reverses direction on reaching upper end position.
• 10205245Nov 30, 2016Equipment. Vehicle positioning inaccurate/implausible.
• 10205156Aug 26, 2016Transmission and drivetrain, Other or unknown. Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.
• 10205247Aug 25, 2016Equipment. Traffic information service and posibly the voice control, nonfunctional after navigation software update.
• 10205264Aug 23, 2016Body and structure. Trunk lid difficult to close.
• 10205244Aug 23, 2016Equipment. Vehicle positioning inaccurate/implausible.
• 10205235Aug 22, 2016Equipment. Cellular telephone; Voice control system.
• 10205194Aug 17, 2016Body and structure. Firewall grommet on assembly partition wall leaky.
• 10205227Aug 9, 2016Visibility (wipers, defrost, mirrors). Wiper blades make noises.
• 10205224Aug 9, 2016Electrical system. Fault message in instrument cluster(B178392).
• 10205154Aug 5, 2016Other or unknown, Engine cooling. Gasket may settle causing a slight oil leak.
• 10205243May 9, 2016Equipment. Central display: Malfunctions temporarily.

← All problems reported for the 2021 Mercedes-Benz E 450