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Vehicle speed controlPart report

1986 Mercedes-Benz 420 Vehicle speed control Problems

Complaints
2about this part
Share
33%of 6 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 2 complaints about the vehicle speed control of the 1986 Mercedes-Benz 420, 33% of the 6 complaints for this model year. 2 of these say a crash was involved, according to the filers.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Got in the vehicle, started the ignition, and vehicle accelerated during 80 MPH on wet pavement. Vehicle kept spinning around and around and slammed against the curb and bounced back and forth against the curb. Also, wheel came off and vehicle ended up in consumer's yard between an oak tree and a telephone pole.”

NHTSA complaint #835924, filed 1999-03

Vehicle speed control: other model years

YearComplaintsShare of year
199715%
199416%
1986233%

Other parts of the 1986 Mercedes-Benz 420

Equipment
1 complaints
Exterior lighting
1 complaints
Fuel system
1 complaints
Body and structure
1 complaints
Suspension
1 complaints
Tires
1 complaints

← All problems reported for the 1986 Mercedes-Benz 420

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology