vehicle signal
U.S. public vehicle records

2020 Bmw 840I problems and owner complaints

Explore the records behind recurring owner reports.

Key facts

4 owner complaints analyzed

5 distinct recall campaigns

2,000 mi median reported failure mileage

Scope: 2020 model year. Data snapshot: . 3 complaints include usable failure mileage.

This selection has limited data. It remains available for lookup but is excluded from search indexing.

Owner-reported patterns

Most common problems

Electrical System is the most frequently named component, appearing in 1 of 4 complaints (25.0%). A complaint can name multiple components.

Recurring terms in complaint narratives
TopicMatching reportsShare of complaints
Braking behavior125.0%
Electrical and battery issues125.0%
Steering behavior125.0%

Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.

Component breakdown

Number of unique complaints naming each component. Top eight shown.

Electrical System
1
Engine
1
Service Brakes, Hydraulic
1
Steering
1
Unknown Or Other
1
Component breakdown data
CategoryCount
Electrical System1
Engine1
Service Brakes, Hydraulic1
Steering1
Unknown Or Other1

Electrical System: 1; Engine: 1; Service Brakes, Hydraulic: 1; Steering: 1; Unknown Or Other: 1

Reported problems by failure mileage

Complaint counts in mileage bands. These are not failure rates per vehicle or mile.

Under 25,000
2
25,000 to 49,999
1
50,000 to 74,999
0
75,000 to 99,999
0
100,000 to 149,999
0
150,000 and above
0
Reported problems by failure mileage data
CategoryCount
Under 25,0002
25,000 to 49,9991
50,000 to 74,9990
75,000 to 99,9990
100,000 to 149,9990
150,000 and above0

Under 25,000: 2; 25,000 to 49,999: 1; 50,000 to 74,999: 0; 75,000 to 99,999: 0; 100,000 to 149,999: 0; 150,000 and above: 0

Under 25,000 miles has the most reports with usable mileage (2). 1 complaints have missing, zero or invalid mileage.

Complaints over time

Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.

2020
1
2021
1
2024
2
Complaints over time data
CategoryCount
20201
20211
20242

2020: 1; 2021: 1; 2024: 2

Pattern summary

Electrical System leads the component reports. Braking behavior appears in 1 complaint narratives. Electrical and battery issues appears in 1 complaint narratives. Steering behavior appears in 1 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.

Calculated from recorded counts. An AI narrative has not been published for this selection.

Complaint evidence

Examples provide context, not a representative sample or a verified diagnosis.

Owner report 11623012 · 2024-10-31 (October 31, 2024)

The contact owns a 2020 BMW 840I. The contact stated while driving 30 MPH, the vehicle abruptly decelerated and nearly came to a complete stop. The contact was able to pull to the shoulder of the roadway, where the failure persisted. Several unknown warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the integrated braking system, resulting in a brake seizure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V062…

Owner-reported narrative. 36,000 miles reported. Look up ODI 11623012 at NHTSA ↗

Owner report 11609934 · 2024-08-21 (August 21, 2024)

My vehicle mileage was about 50,000 miles and well maintained by BMW dealership in my area. I was driving to work when suddenly my vehicle alerted me to a fault on display panel showing a power supply fault. The message said i should stop driving and call roadside assistance. The vehicle was towed to BMW dealership. There were no prior warnings or messages or symptoms in relations to this fault. The dealership confirmed that the water pump failed, and caused the drive belt to dislodge, also caused the alternator to malfunction and eventually da…

Owner-reported narrative. Look up ODI 11609934 at NHTSA ↗

Owner report 11319255 · 2020-03-25 (March 25, 2020)

THE LANE KEEPING DRIVING ASSISTANCE/DRIVING ASSISTANCE PRO ON THE 2020 BMW 840I GRAN COUPE PRODUCES A SUDDEN LOUD "BARK" WHEN THE ASSISTANCE SYSTEM LOSES SIGHT OF THE LANE MARKERS. THAT OFTEN HAPPENS IN INTERSECTIONS BUT CAN HAPPEN ANYWHERE WHERE THE LANE MARKERS ARE WORN. I BOUGHT THE CAR ON 2/29/2020 AND IT HAS HAPPENED MANY TIMES SINCE THEN AND NOT ONLY ON THE DATE SHOWN. THE SUDDEN LOUD "BARK" IS A DISTRACTION, A NUISANCE AND TOTALLY UNNECESSARY SINCE THE INSTRUMENT PANEL ALSO HAS A LARGE DISPLAY SHOWING THE STATUS OF THE DRIVING ASSISTANCE…

Owner-reported narrative. 100 miles reported. Look up ODI 11319255 at NHTSA ↗