2017 MERCEDES-BENZ C450

2 recalls — 3 complaints — 85 TSBs

ELECTRICAL SYSTEM:STARTER ASSEMBLY

Defect Description

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2015-2017 C300 4Matic, C300, CLA250, CLA250 4Matic and CLA45 AMG vehicles, 2017 C300 4Matic Cabrio, C300 4Matic Coupe, C300 Cabrio, C300 Coupe, E300, E300 4Matic, E400 4Matic Wagon, E43 AMG 4Matic, GLA250, GLA250 4Matic and GLC300 4Matic Coupe veh... Read more

Consequence

If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire.

Remedy

MBUSA will notify owners, and dealers will install an additional fuse in the electrical line to the starter, free of charge. The recall began August 31, 2017. Owners may contact MBUSA customer service at 1-800-367-6372. MBUSA's number for this recall is 2017080002.

307,629 vehicles affected

Manufacturer: Mercedes-Benz USA, LLC.

ENGINE AND ENGINE COOLING:ENGINE

Defect Description

Consequence

If the starting current limiter overheats, the surrounding components can melt, increasing the risk of a fire.

Remedy

307,629 vehicles affected

Manufacturer: Mercedes-Benz USA, LLC.

Complaint Statistics

3 total complaints

Top Reported Components

Component	Complaints
WHEELS	1
VISIBILITY/WIPER	1
UNKNOWN OR OTHER	1

Incident date: Sep 1, 2024

The glass on the panoramic sunroof exploded/shattered under normal driving conditions. It was raining but not too heavy. It didn’t appear that anything hit the glass and no potholes were hit. It seemed to be due to pressure or temperature which caused the explosion which sounded like a loud gunsho... Read more

Incident date: Sep 13, 2023

- windshield, and I had Satellite repair it through an insurance claim because it was urgent for my safety. - the windshield and its adhesive never bonded together making the windshield structurally unsafe and if I would have gotten into an accident then my vehicles airbags would have not deployed... Read more

Incident date: Oct 27, 2016

5 MONTHS AFTER RECIEVEING THE CAR I WAS ON THE HIGHWAY AND MY FRONT PASSANGER SIDE TIRE AIR PRESUURE INDICATOR WENT OFF. I PULLED OFF THE HIGHWAY AND PUT A "FIX A FLAT" IN THE TIRE THINKING I RAN OVER A NAIL. THE TIRE WENT LOW AGAIN SO I DROVE TO THE LOCAL MERCEDES BENZ DEALERSHIP WHERE THEY MOUNT... Read more

Technical Service Bulletins — 2017 MERCEDES-BENZ C450

85 manufacturer communications from 56 unique bulletins. TSBs describe known problems and recommended fixes from the manufacturer.

Most Affected Components

Component	Bulletins
110000 ELECTRICAL SYSTEM	13
350000 EQUIPMENT	8
060000 ENGINE AND ENGINE COOLING	6
117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL	6
118000 ELECTRICAL SYSTEM:SOFTWARE	6
353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)	6
353000 EQUIPMENT:ELECTRICAL	4
130000 VISIBILITY	3

110000 ELECTRICAL SYSTEM

Mercedes-Benz AG (??A?A?MBAG??A?A?), the manufacturer of Mercedes-Benz, has determined that in certain MY 2017-2021 C-Class, CLA, CLS, E-Class, GLC, GLE, GLS, AMG GT, S-Class, SL, and SLC (205, 117, 257, 213/238, 253, 166/292, 190/290,217/2

220000 SEATS

Crease formation on genuine leather seat covers in vehicles with low mileage ??A?A? Objects left on the seats for extended periods of time (pressure marks). ??A?A? Objects wedged between the seat backrest and seat cushion (e.g. seat bel

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

The "SOS nonfunctional" message appears sporadically in the instrument cluster of the vehicle. The fault code B129C00 is stored in the control unit log. The message occurs in particular after the vehicle has been non-operational for an ext

110000 ELECTRICAL SYSTEM

060000 ENGINE AND ENGINE COOLING

In our continuing efforts to assure the proper performance of Mercedes-Benz products and to enhance the satisfaction of our customers, Mercedes-Benz USA (a??MBUSAa??) is extending the coverage for the intake line assembly on your vehicle

110000 ELECTRICAL SYSTEM

Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (a??MYa??) 2016 a?? 2021 C-Class (205 platform), E-Class (213 platform) and GLC (253 platform) vehicles, the air conditioning contro

130000 VISIBILITY

118000 ELECTRICAL SYSTEM:SOFTWARE

010000 STEERING

Complaint Loads induced at the steering wheel through pushing and pulling actions may cause creaking and cracking noises in the mechanical steering column. Cause Insufficient grease lubrication in the clamping area of the mechanical ste

160000 STRUCTURE

Staining on door trim strips and top and bottom trim elements on rear side windows. Cause Damage to protective coating of door beltline trim strips, door upper trim strips and side window trim element. Remedy 1. Check if the problem can

010000 STEERING

Complaint Height adjustment of electric steering column adjustment jammed in the top/bottom adjustment position (e.g. with Easy Entry function). Cause Height adjustment moves to the top/bottom limit stop and jams. 1. Steering column hei

350000 EQUIPMENT

118000 ELECTRICAL SYSTEM:SOFTWARE

110000 ELECTRICAL SYSTEM

Complaint Customer may have one or more of the following complaints: a?? Vehicle location is shown incorrectly in the Navigation Display a?? Navigation destination search is not possible a?? Street names are not shown in Navigation disp

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

350000 EQUIPMENT

110000 ELECTRICAL SYSTEM

Complaint The result from the XENTRY battery test does not match the current state of the battery. Cause The XENTRY battery tester uses the stored on-board electrical system data in the SAM module to access the health of the 12 volt bat

110000 ELECTRICAL SYSTEM

Mercedes-Benz AG (a??MBAGa??), the manufacturer of Mercedes-Benz, has determined that on certain MY 2015-2018 C-Class and GLC-Class (205 and 253 platform) vehicles, the software for the powertrain control unit may not correspond to the cu

060000 ENGINE AND ENGINE COOLING

330000 INTERIOR LIGHTING

Complaint The touchpad dimming function does not work and the search lighting is either at maximum brightness or fully off (dependent upon dimming signal). Note: The dimming functions of the instrument cluster and head unit display are no

110000 ELECTRICAL SYSTEM

Complaint The garage door hand transmitter cannot be initialized with the integrated garage door opener in the inside rearview mirror. Cause 1. The integrated garage door opener (GDO) is not compatible with the opening system installed

110000 ELECTRICAL SYSTEM

Complaint The range of the integrated garage door opener (GTO) is too short. Cause 1. Vehicles equipped with infrared windows and/or a heated windshield may suffer from complaints involving low transmission power. 2. When comparing the

060000 ENGINE AND ENGINE COOLING

"MY15+ M278 and M157 Equipped Vehicles with Fault Code ""P023400 a?? Boost Pressure is Too High"" "

353000 EQUIPMENT:ELECTRICAL

The Weather App will not populate local weather data based on current vehicle position.

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

The Weather App will not populate local weather data based on current vehicle position.

070000 FUEL SYSTEM, GASOLINE

Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning

071000 FUEL SYSTEM, GASOLINE:STORAGE

Fuel filler flap opens slowly/switch flashes/tank is bleeding instrument cluster warning

353000 EQUIPMENT:ELECTRICAL

Intermittently after bus sleep the lower control panel LCP and upper control panel UCP may be panel UCP may be inoperable.

330000 INTERIOR LIGHTING

Touch pad: Search lighting does not dim or does not turn on.

118000 ELECTRICAL SYSTEM:SOFTWARE

Remote start causing CEL and U012600.

350000 EQUIPMENT

Remote start causing CEL and U012600.

060000 ENGINE AND ENGINE COOLING

Remote start causing CEL and U012600.

110000 ELECTRICAL SYSTEM

For plug in hybrid and electric variants: Complaints about the electric range

355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL

Model indicator index.

356000 EQUIPMENT ADAPTIVE/MOBILITY

Replace 3rd brake lamp, remove soft top compartment cover to access.

350000 EQUIPMENT

Replace 3rd brake lamp, remove soft top compartment cover to access.

110000 ELECTRICAL SYSTEM

Replace 3rd brake lamp, remove soft top compartment cover to access.

118000 ELECTRICAL SYSTEM:SOFTWARE

Mercedes-Benz AG (?MBAG?), the manufacturer of Mercedes-Benz, has determined that on certain Model Year (?MY?) 2013-2017 B-Class, C-Class, CLA-Class, CLS-Class, E-Class, G-Class, GL-Class, GLA-Class, GLC-Class, GLE-Class, GLK-Class, GLS-Cla

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock

110000 ELECTRICAL SYSTEM

NTG5.5: Incorrect time shown on instrument cluster, COMAND display, and analog clock

030000 SERVICE BRAKES, HYDRAULIC

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

251000 ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

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

010000 STEERING

Cracking/Creaking Noises Coming From The Area Of The Mechanical Steering Column

121000 EXTERIOR LIGHTING:HEADLIGHTS

Headlamps fogged

350000 EQUIPMENT

To enhance the satisfaction of our customers, avoid further costs of litigation and return focus to its core businesses, Mercedes-Benz USA, LLC (MBUSA) has entered into a settlement regarding claims relating to alleged mold and mildew type

350000 EQUIPMENT

NTG5.5 Audio 20 with codes 355 and 357: Vehicle positioning inaccurate / implausible, route guidance not possible

355100 EQUIPMENT:OTHER:LABELS

Information Label on Tire Sealant

190000 TIRES

Information Label on Tire Sealant

020000 SUSPENSION

Throttle lift-off clunking noises at drive shafts of front axle

356000 EQUIPMENT ADAPTIVE/MOBILITY

Throttle lift-off clunking noises at drive shafts of front axle

060000 ENGINE AND ENGINE COOLING

Check coolant hose from expansion reservoir to cooler and replace if necessary

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

"High-voltage battery warning message" in instrument cluster

100001 HYBRID PROPULSION SYSTEM

Electric range is reduced after brief period

118000 ELECTRICAL SYSTEM:SOFTWARE

NTG 5.5 head unit - Browser shows "Fault during authentication" message

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

COMAND Online (code 531): Wrong date in system settings, incorrect time in instrument cluster

273000 LANE DEPARTURE: BLIND SPOT DETECTION

BR205 Facelift - Blind Spot Assist may activate without obvious cause

150000 SEAT BELTS

Seat belt extender toothed rack sluggish or makes noises

060000 ENGINE AND ENGINE COOLING

Model series 205 NAG2 only for C450 AMG, hard torque converter lockup clutch cut-in

353000 EQUIPMENT:ELECTRICAL

Disturbed Antenna Signal.

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

Navigation system permanently displays "Activating".

061400 ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

Ticking or pulsing noise from high-pressure pump and/or fuel injectors.

353000 EQUIPMENT:ELECTRICAL

Reset the customer-specific data and perform a software update of the AUDIO20 control unit.

980000 UNKNOWN OR OTHER

Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.

103000 POWER TRAIN:AUTOMATIC TRANSMISSION

Intial startup not possible after replacement of transmisson 725.0 or of electrohydraulic controller unit.

121000 EXTERIOR LIGHTING:HEADLIGHTS

Headlamp fog.

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

Traffic information service and posibly the voice control, nonfunctional after navigation software update.

353500 EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM)

Navigation system permanently displays "Activating".

353400 EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.

CD/DVD No longer ejected or drawn in.

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

High voltage battery warning message in instrument cluster.

061530 ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:SEALS/GASKETS

Gasket may settle causing a slight oil leak.

980000 UNKNOWN OR OTHER

Gasket may settle causing a slight oil leak.

117000 ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

ESP, BAS, PRE-SAFE - Fault message in instrument cluster

021000 SUSPENSION:FRONT

Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper

022400 SUSPENSION:REAR:SHOCK ABSORBER

Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper

021400 SUSPENSION:FRONT:MACPHERSON STRUT

Clunking noise from front axle suspension strut or rear axle shock absorber on short strokes of the damper

130000 VISIBILITY

Passenger side outside mirror glass adjusts itself at random at ignition on/off

350000 EQUIPMENT

In addition to the information published in the Introduction into Service Manual, note maintenance interval changes for model 205.

350000 EQUIPMENT

MY-All Model 205, Maintenance Interval

130000 VISIBILITY

Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.

180000 VEHICLE SPEED CONTROL

Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.

354000 EQUIPMENT:MECHANICAL

Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.

118000 ELECTRICAL SYSTEM:SOFTWARE

Window lifter and outside mirror on passenger side malfunction after replacement of door control unit.

110000 ELECTRICAL SYSTEM

The COMAND unit does not start or the COMAND display remains dark. The COMAND unit cannot be operated. Note: The problem disappears after a lengthy idle period (>6h) or after interrupting the power supply (circuit 30).

MERCEDES-BENZ C450 — All Years Overview

Complete safety history for the MERCEDES-BENZ C450 across all model years (2016–2017).

15 Total Recalls

25 Total Complaints

0 Investigations

0 Reported Crashes

0 Reported Fires

0 Reported Deaths

MERCEDES-BENZ C450 — Year by Year

Compare recalls and complaints across model years. Click any year to see full details.

Year	Recalls	Complaints
2017 (current)	2	3
2016	13	22	View

Other MERCEDES-BENZ Models

Model	Recalls	Complaints
GLA 250	1,219	416	View
GLC 300	1,143	568	View
GLE 350	1,116	311	View
C 300	1,074	360	View
AMG GLS63	963	12	View
AMG C43	944	74	View
CLA 250	923	130	View
AMG GLC43	920	42	View