Owners have filed 3 complaints on the BMW 840Ci, covering 1994–1996. The system named most often is Electrical System (1 reports). Worst years by volume: 1996, 1995, 1994; cleanest: 1994, 1995, 1996. 0 reports describe a crash, 1 a fire. On average the car was 6.0 years old when the problem happened.
What breaks on BMW 840Ci
Grouped by the system owners named — percentages are shares of all 3 840Ci complaints. Open any row for the full reports in owners' own words.
Electrical System 1 Read
The Lighting Control Board Module (LKM) of the 1996 BMW 840Ci failed in a manner that caused it to catch fire even though the vehicle was not running at the time, and in fact had not been driven in several days. The fire damaged surrounding modules and wiring inside the passenger compartment of the car, and filled the…
Visibility 1 Read
Windshield wipers fail intermittently
Exterior Lighting 1 Read
Headlight adjusters have fallen off while driving, unable to ajust headlight. *ak *yh
840Ci years to avoid — and the clean ones
Complaints per model year. More reports usually means more cars on the road as well as more trouble, so read the crash and fire columns alongside the count.
| Model year | Complaints | Top system | Crashes | Fires |
|---|---|---|---|---|
| 1996 | Electrical System,exterior Lighting | — | 1 | |
| 1995 | Visibility | — | — | |
| 1994 | Exterior Lighting | — | — |
The same model year, different builds
Every complaint carries the first 11 characters of the VIN — plant, year, body and engine. That is a production series, and complaints are spread across them very unevenly.
| Measure | Value |
|---|---|
| Distinct production series | 3 |
| Average complaints per series | 1 |
| Worst single series | 1 complaints |
| Average age at failure | 6.0 years |
A model average of 1 hides a worst series at 1. Enter a VIN above to see the numbers for that exact build instead of the model as a whole.
Owners reported these. Find out if yours is one of them.
- Complaints matched to the exact production run, not just the model
- What the car is worth given what tends to fail on it
- The original window sticker and factory options
- Full research report as a PDF for the pre-purchase inspection
- No ads, on every page
- No ads, no tracking — and much more
How we count
Every figure here comes from complaints owners filed with NHTSA — 1,100,006 of them, covering 1,982 models built between 1981 and 2026.
A complaint is an unverified report: someone wrote down what happened to their car. It is not a confirmed defect and not a recall. What makes the volume useful is the pattern — when thousands of owners of the same build describe the same failure, that is a signal no marketing brochure will give you.
Two things we do that the source does not. First, we compute the age of the car at the moment of failure from the incident date and the model year. Second, we group complaints by the first 11 characters of the VIN — the production series — so a bad plant run does not disappear into a model-wide average.
Frequently asked questions
What are the worst years for the 840Ci?
By complaint volume, 1996, 1995, 1994 drew the most owner reports. Bear in mind that popular years put more cars on the road, so check the crash and fire columns too.
Which 840Ci years are the cleanest?
1994, 1995, 1996 have the fewest complaints on file. For recent years that can simply mean the cars are young.
How many complaints does the BMW 840Ci have?
3 owner complaints filed with NHTSA, covering 1994–1996. Of those, 0 describe a crash and 1 a fire.
Are these complaints verified?
No. They are unverified reports from owners. NHTSA publishes them as filed and investigates only a fraction. The value is in the pattern, not in any single report.
Can I check complaints for one specific car?
Yes — enter its VIN above. We match the first 11 characters, which identify the plant, year, body and engine, so you get complaints on that exact production series rather than the whole model.