RoadVitals

1993 Mercedes-Benz 300 Problems

Owner-reported complaints filed with NHTSA, grouped by component

Data refreshed

Owner complaintsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
39
Latest Apr 10, 2013
Components namedHow many of our component categories appear on at least one report for this model year. One report can name several.
12
Crash or fire reportedComplaints whose submitter recorded that a crash or a fire occurred. These are the reporter's own answers on the NHTSA form, not verified findings.
4

What this page shows

Everything below is an owner-reported complaint submitted to NHTSA about the 1993 Mercedes-Benz 300, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Reports by component

Ranked by how many owner reports name each component category

  • Electrical2450.0%
  • Engine714.6%
  • Steering36.3%
  • Fuel system36.3%
  • Airbags24.2%
  • Driver assistance24.2%
  • Seat belts24.2%
  • Brakes12.1%
  • Visibility12.1%
  • Body & structure12.1%
  • Tires & wheels12.1%
  • Heating & air conditioning12.1%

Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.

Each component in detail

What the reports in each category say, in the owners' own words

Electrical

Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.

24
reports

From owner reports, verbatim

THE ENGINE HARNESS PROBLEM AFTER OWNING MY CAR SINCE 1993. IT IS CLEAR THAT THE ENGINE HARNESS WAS MADE WITH BIODEGRADABLE MATERIAL WHICH HAS NOW LOST IT'S PLASTIC COVERING OVER THE METAL WIRES. WITH WIRES EXPOSED AFTER THE ENGINE HARNESS DEGRATION, THE CAR WHICH WAS SUPPOSED TO LAST ME FOR A LONG TIME, HAS BECOME IMPOSSIBLE TO USE. WITHOUT THE PROPER HARNESS REPLACEMENT, THE CAR IS TOTALLY USELESS. UPON CHECKING INTO THIS PROBLEM I HAVE FOUND OUT THAT EVERY E300 BUILT BETWEEN 1992 AND 1997 IS BUILT WITH THE SAME HARNESS. ALL THESE CARS THAT ARE STILL ON THE ROAD ARE HAVING THE SAME ISSUE. I AM TOLD THIS IS A MAJOR FIRE HAZARD, THEREFORE I HAVE STOPPED USING MY CAR. THIS PROBLEM SOONER OR LATER WILL HURT SOMEONE UNTIL MERCEDES RECALLS AND REPLACES THE HARNESS FOR THE CARS THAT THEY HAVE ON THE ROAD. *TR

NHTSA ID 10505881 · filed Apr 10, 2013

MY WIRING HARNESS HAS FAILED ON MY 1993 300E MERCEDES BENZ THE INSULATION COME OFF WIRING. *KB

NHTSA ID 10437495 · filed Nov 28, 2011
All 24 reports naming electrical

Engine

Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.

7
reports

From owner reports, verbatim

HEAD GASKET AND FUEL INJECTOR PROBLEMS. *BF *JB

NHTSA ID 10109323 · filed Dec 10, 2004

TIMING CHAIN BROKE, CAUSING VEHICLE TO STALL. *AK

NHTSA ID 895235 · filed Aug 27, 2001

Too few reports in this category for a page of its own — they appear in the full complaint list.

Steering

Reports naming the steering system — racks, columns, power-steering assist and steering linkage.

3
reports

From owner reports, verbatim

VEHICLE WAS IN ACCIDENT 9-2-00. DEALER TOLD INSURANCE COMPANY (CHUBB) THAT THERE WAS $5000 DAMAGE. AFTER CONTACTING RALPH KOOS AT MERCEDES USA, HE FOUND THOUSANDS OF DOLLARS IN ADDITIONAL REPAIRS. CONCOURS WAS REIMBURSED FOR MORE THAN THE CAR WAS WORTH. HOWEVER MERCEDES ASSURED US THAT THE CAR WAS COMPLETELY FIXED AND SAFE TO DRIVE. A FEW WEEKS LATER, THE RIGHT SIDE COLLAPSED, MADE NOISES AND SWAYED SIDE TO SIDE SO MUCH THE VECHILE FELT LIKE IT WAS GOING TO FLIP OVER. THE VEHICLE HAS EITHER A MANUFACTURERS DEFECT OR THE REPAIRS WERE NOT COMPLETE FROM THE ACCIDENT.

NHTSA ID 738708 · filed Jan 3, 2001

BRAKES FAILED, RESULTING IN EXTENDED STOPPING DISTANCE.

NHTSA ID 484810 · filed Jul 30, 1995

Too few reports in this category for a page of its own — they appear in the full complaint list.

Fuel system

Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.

3
reports

From owner reports, verbatim

THE ENGINE / FUEL INJECTION WIRING HARNESS OF MY 1993 MERCEDES-BENZ 300E HAS CRACKED INSULATION THROUGHOUT AND IS BEGINNING TO SHORT OUT WITH THE RISK OF CAUSING DANGEROUS ENGINE MALFUNCTION AND EVEN FIRE INSIDE MY ENGINE COMPARTMENT. I HAVE READ MANY REPORTS OF OTHER MERCEDES-BENZ CARS OF THE SAME AGE RANGE HAVING THE EXACT SAME DEFECT. I HAVE BROUGHT IT IN TO MY MECHANIC SEVERAL TIMES BECAUSE OF THE HESITATION AND SHORTING THAT OCCURS - ESPECIALLY WHEN I HAVE THE AC OR HEATER RUNNING AND HAVE SPENT A SIGNIFICANT AMOUNT OF MONEY ON TRYING TO REMEDY IT BY ATTEMPTING TO RE-WRAP THE WIRING BUT IT ONLY AFFORDED ME A TEMPORARY FIX AT BEST. THE ESTIMATE I WAS GIVEN TODAY WAS FOR $1,400 FOR THE WIRING HARNESS AND ANOTHER $700 - $800 FOR THE LABOR COST ASSOCIATED WITH IT'S INSTALL. FROM THE NUMBER OF SIMILAR ANECDOTAL STORIES I HAVE READ ONLINE WHILE RESEARCHING THIS ISSUE, I WONDER WHY MERCEDES BENZ HAS NOT ISSUED A RECALL ON THIS OBVIOUS DESIGN DEFECT. *TR

NHTSA ID 10229661 · filed Jun 2, 2008

FUEL INJECTOR HARNESS IS DRY ROTTED AS SEEN IN THE IMAGES ON THIS SITE. I JUST RECENTLY DISCOVERED THAT THERE IS A MAJOR DEFECT WITH THE HARNESS ASSEMBLY DUE TO POOR WORKMANSHIP THIS IS CERTAINLY A MANUFACTURING DEFECT. MERCEDES SHOULD REPLACE THE HARNESS FREE OF CHARGE. *TR

NHTSA ID 10215182 · filed Jan 16, 2008

Too few reports in this category for a page of its own — they appear in the full complaint list.

Airbags

Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.

2
reports

From owner reports, verbatim

UPON IMPACT, DURING FRONTAL CRASH, AT APPROX. 50MPH, 11:00 ON FRONT BUMPER, DRIVER'S AIRBAG FAILED TO DEPLOY, PASSENGER'S SIDE AIRBAG DID DEPLOY. TT

NHTSA ID 976496 · filed Dec 11, 1995

HAD A FRONTAL COLLISION, DRIVER SIDE AIR BAG DID NOT DEPLOY. TT

NHTSA ID 967720 · filed Jun 26, 1995

Too few reports in this category for a page of its own — they appear in the full complaint list.

Driver assistance

Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.

2
reports

From owner reports, verbatim

ENGINE CYLINDER HEAD BLEW OUT, CAUSING COOLING LEAKAGE. DEALER HAS REPLACED ENGINE CYLINDER HEAD. ALSO REPLACED CRUISE CONTROL AND IGNITION. *AK

NHTSA ID 853295 · filed Dec 16, 1999

DURING OPERATION THE CAR EXPERIENCES SUDDEN ACCELERATION. PROBLEM OCCURS ONLY WHEN STARTING FROM A COMPLETE STOP.*AK

NHTSA ID 801199 · filed Aug 22, 1996

Too few reports in this category for a page of its own — they appear in the full complaint list.

Seat belts

Reports naming seat belts, buckles, retractors and pretensioners.

2
reports

From owner reports, verbatim

DRIVER'S RESTRAINT DOES NOT RETRACT WHEN DRIVER LEANS FORWARD AND BACK. DEALER WILL BE NOTIFIED. *AK WHEN MAKING A U-TURN, THE ENGINE DIES WITHOUT ANY APPARENT REASON. *YH

NHTSA ID 875955 · filed Dec 4, 2000

SEAT BELT CAME APART DUE TO LOSS OF SPRING. YH

NHTSA ID 551428 · filed Mar 20, 2000

Too few reports in this category for a page of its own — they appear in the full complaint list.

Brakes

Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.

1
report

From owner reports, verbatim

BRAKES FAILED, RESULTING IN EXTENDED STOPPING DISTANCE.

NHTSA ID 484810 · filed Jul 30, 1995

Too few reports in this category for a page of its own — they appear in the full complaint list.

Visibility

Reports naming windshields, glass, wipers, defrosters and mirrors.

1
report

From owner reports, verbatim

BRAKES FAILED, RESULTING IN EXTENDED STOPPING DISTANCE.

NHTSA ID 484810 · filed Jul 30, 1995

Too few reports in this category for a page of its own — they appear in the full complaint list.

Body & structure

Reports naming the vehicle structure, frame, body panels, doors, hood and trim.

1
report

From owner reports, verbatim

VEHICLE WAS IN ACCIDENT 9-2-00. DEALER TOLD INSURANCE COMPANY (CHUBB) THAT THERE WAS $5000 DAMAGE. AFTER CONTACTING RALPH KOOS AT MERCEDES USA, HE FOUND THOUSANDS OF DOLLARS IN ADDITIONAL REPAIRS. CONCOURS WAS REIMBURSED FOR MORE THAN THE CAR WAS WORTH. HOWEVER MERCEDES ASSURED US THAT THE CAR WAS COMPLETELY FIXED AND SAFE TO DRIVE. A FEW WEEKS LATER, THE RIGHT SIDE COLLAPSED, MADE NOISES AND SWAYED SIDE TO SIDE SO MUCH THE VECHILE FELT LIKE IT WAS GOING TO FLIP OVER. THE VEHICLE HAS EITHER A MANUFACTURERS DEFECT OR THE REPAIRS WERE NOT COMPLETE FROM THE ACCIDENT.

NHTSA ID 738708 · filed Jan 3, 2001

Too few reports in this category for a page of its own — they appear in the full complaint list.

Tires & wheels

Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.

1
report

From owner reports, verbatim

MICHELIN TIRES #224/60 R26 97V, WORN UNEVENLY AND EXCESSIVELY.

NHTSA ID 515132 · filed Feb 26, 1997

Too few reports in this category for a page of its own — they appear in the full complaint list.

Heating & air conditioning

Reports naming the heating, ventilation and air-conditioning system.

1
report

From owner reports, verbatim

A/C EVAPORATOR LEAKS WHICH PREVENTS COOLING OF THE VEHICLE. R134A STOP LEAK APPLIED HOWEVER IT DID NOT SEAL LEAK.*AK

NHTSA ID 752048 · filed Sep 10, 2001

Too few reports in this category for a page of its own — they appear in the full complaint list.

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .