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1992 Mercedes Benz 300 Series problems

The most common problem on the 1992 Mercedes Benz 300 Series is electrical system, typically around 130,000 miles. Its complaint count is close to a typical 300 Series model year.

Typical yearClose to a typical year
Owner complaints
13
Recalls
0
Worst area
Electrical

The worst 1992 Mercedes Benz 300 Series problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Electrical
    9
  • Engine
    4
  • Body
    1
  • Tires
    1
  • Transmission
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Electrical
    9
  • Engine
    4
  • Body
    1
  • Tires
    1
  • Transmission
    1

Recalls

No recalls on record for this model year.

What 1992 Mercedes Benz 300 Series owners say

Most recent owner complaints, unedited.

Filed Dec 11, 2012 · Electrical · 130,000 miles · NJ

The guy sold to me with it not running he said he had the wiring harness replaced and it still don't run 700 was spent I have recite its a 1992 300se this is sick this is what [xxx] told him and it still don't run so now what? Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Aug 3, 2012 · Body, Engine · 215,279 miles · AZ · crash · 2 injuries

I was going west on vineyard and 10th st, a car traveling (65mph) south on 10th st hit the passenger side door pushing the car into a pole damaging the left front end.

Filed Jul 29, 2012 · Tires · CA

We departed from home and drove at the local speed of 45-55 MPH for approximately 4 miles and proceeded to enter the freeway. We drove on the freeway for approximately 10 miles at 65 MPH when the rear passenger side tire suddenly exploded. This was without warning as there had been no signs or feeling of a flat tire. Tires' pressures are checked periodically, about once every month. We always ensure tires are visually inspected appropriately prior to departing our home. The tires were intact with no visual flaws prior to leaving home this morning. The explosion caused the tire treads to separate from both the inner and outer sidewalls. After the explosion, we could still see that the sidewalls were still attached to the rim. We were very fortunate that no one was injured from the explosion. On a busy freeway, an explosion like this could have caused much more extreme and serious damage.

Filed May 18, 2009 · Electrical · 100,500 miles · AZ

1992 mercedes benz 300se the issue is from the results of a dryrotted engine wiring harness. During the time period this car was manufactured mercedes benz used a biodegratable material for the wire coverings. This material through the years could not withstand the heat produced by the engine under the hood. This is a problem that mercedes know about and has since changed the wiring harness cover material a few year later. All their mechanics know this and it is well documented on every mercedes forum that I have found. I am talking about thousands of occurrences recorded. The redesigned harness is a $600.00 item which is why mercedes tends to look the other way and refuses to accept this as a recall item. This item must be addressed because if gone unattended it becomes a serious fire hazard which is also well documented and was mentioned by my mechanic. He also stated that most dealerships will not work on these cars unless the engine harness is replaced first. This is because the car is impossible to diagnosis if the wiring is not in a good working condition due to the fact that false signals are sent to their diagnostic equipment. My mechanic also provided me with additional information directly from his mercedes benz preliminary inspection & adjustment procedures manual. It is retyped and quoted exactly as the mercedes benz documentation states. Preliminary inspection & documentation visual inspection 1) visually inspect all electrical wiring, looking for chafted, stretched, cut or pinched wiring. Ensure electrical connectors fit tightly and are not corroded. Check for loose or defective electrical connections on starter motor. Ensure all vacuum hoses are properly? Now I ask you; if this is not known by mercedes benz to be an issue then why is it the very first thing in their preliminary inspection that they have all of their trained mechanics look for?

Filed May 8, 2009 · Electrical, Engine · 100,500 miles · AZ

Tl*the contact owns a 1992 mercedes benz 300se. The contact noticed that the vehicle was not idling properly. The vehicle would stall while at a stop sign and completely shut off. The vehicle was able to be restarted immediately. The dealer stated that the engine wiring harness was faulty. The mechanic suggested that he notify the manufacturer, but they claimed to never have heard of the failure and could not assist. The vehicle has not been repaired. The current and failure mileages were approximately 100,500. Updated 05/19/09 *bf the issue was a dry rotted engine wiring harness. During the time the vehicle was manufactured, mercedes benz used a biodegradable material for the wire coverings. The material through out the years could not withstand the heat produced by the engine under the hood. Updated 05/27/09.

Filed Feb 25, 2009 · Electrical · 240,000 miles · CA · fire

Electrical wiring harness of the 1992 w140 mercedes benz 300sd shorted out and cause a fire inside my vehicle. I shut of the power source and now my car is worthless since the wiring is bad.

Filed Nov 15, 2007 · Electrical · 130,048 miles · AL · fire

I bought the car used.... I now know why the man was so eager to sell at such a reasonable price. Car continues to stall on me, after letting it sit and cool for approx. 20+ mins it will usually start. On one occasion the car seemed to be on fire, by the time I got pulled over, there was just a lot of smoke. After driving the car for anything over 5-10 mins it smells as if it were on fire.

Filed Apr 2, 2007 · Electrical, Engine · MN

Radio, alarm, backup warning, moon roof, quit working. Battery died and had to be replaced. Car had difficulties starting and running rough. Both wiring harnesses have to be replaced.

Filed Jul 24, 2006 · Electrical · CA

1992 mercedes 300e, engine wiring harness failing causing car to short out, stall, not drivable.

Filed Mar 9, 2006 · Electrical · WA

I have a 1992 300ce and I was informed last week by the mechanic that the wiring harness is cracking and peeling. After reading the many complaints about their wiring harness causing a fire I am concern. The problem that I am having is the car alarm, radio, and left headlight socket plug is damage due to electrical fault. I am considering replacing the wire harness.

Compare the 1992 Mercedes Benz 300 Series

Other model years

19901991199219931995

Questions about the 1992 Mercedes Benz 300 Series

Is the 1992 Mercedes Benz 300 Series reliable?

Owners have filed 13 complaints about the 1992 Mercedes Benz 300 Series, close to a typical 300 Series model year.

What is the most common problem with the 1992 Mercedes Benz 300 Series?

Electrical system, with 9 complaints, typically around 130,000 miles. Next is engine (4).

How many recalls does the 1992 Mercedes Benz 300 Series have?

No recalls on record.

What year does the Mercedes Benz 300 Series have the most electrical problems?

The Mercedes Benz 300 Series model years with the most electrical complaints are 1993 (19 complaints) and 1995 (11 complaints).

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