The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
full bulletin at NHTSA ↗2014 BMW 428i engine problems
moderate 14 complaints filed with NHTSA · avg repair $3,100 · see engine across all vehicles →
Complaints
14
Recalls
0
Avg fix
$3,100
What stands out
Engine accounts for 39% of every owner complaint on file for this vehicle — the dominant problem area across 3 categories tracked.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering engine on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
The quick disconnect coupling on the cylinder head coolant vent line could break at the cylinder head. This would lead to loss of coolant from the engine.
full bulletin at NHTSA ↗For the above-referenced vehicles, BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date.
full bulletin at NHTSA ↗BMW of North America, LLC (BMW NA) is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date
full bulletin at NHTSA ↗BMW of North America, LLC BMW NA is extending the limited warranty for the engine timing chain and oil pump drive chain modules to: 7 years/70,000 miles as determined by the vehicle's original in-service date
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
Fourteen complaints cluster around recall 24V608 affecting the coolant pump and engine electrical system. Ten owners have received recall notices but cannot complete repairs because BMW has not supplied replacement parts as of mid-2025—over one year after the recall issued. Two owners experienced actual failures: one had the coolant pump leak and overheat while idling in traffic (80,000 miles), another noticed burning smell in the cabin (69,700 miles) and was advised not to drive. Both were stuck waiting for unavailable parts. A third owner's car shut down without warning at highway speed with no prior symptoms; BMW dealers blamed a broken oil pump, though another shop attributed it to oil starvation. The owner reports BMW changed the oil pump drive design quietly and did not notify owners. A fourth owner dealt with a significant oil leak at 99,099 miles that recurred after multiple attempted repairs—filter and gasket replacement, synthetic oil change, and dealer service all failed. One report mentions timing chain noise from a loose chain and weak guide rails. Most affected owners report frustration with the extended delay and are unable to sell or list their vehicles due to the unresolved recall status.
Same BMW 428i engine reports on nearby years: 2015
Failure modes owners describe
Coolant pump failure / engine overheating
Coolant pump leaks, causing coolant loss and overheating. Related to open recall 24V608. Multiple owners report engine overtemperature warnings while driving and inability to complete recall repairs due to unavailable parts.
When: 69,700–99,099 miles; some failures occur while idling in traffic or at highway speeds
Symptoms owners cite: Coolant leaking; Engine overheating; Temperature gauge reads extremely hot; Engine overtemperature warning message ('Engine Over temperature - Stop Carefully'); Loss of coolant
Repairs/costs cited: Recall 24V608 issued but repair parts unavailable as of mid-2025; some dealers have attempted repair but parts remain unavailable
Recalls/TSBs owners mention: NHTSA Recall 24V608 (Engine and Engine Cooling, Electrical System); BMW acknowledges the recall but has not provided parts or completed repairs for over one year
Burning smell during operation
Owners report abnormal burning odor inside the cabin while driving at various speeds. Occurs in recall-affected vehicles (24V608); no diagnosis or repair completed due to unavailable recall parts.
When: At 69,700 miles and unknown mileage on other vehicles
Symptoms owners cite: Burning odor inside vehicle cabin; Abnormal burning smell
Repairs/costs cited: Not diagnosed or repaired; owners advised not to drive vehicle
Recalls/TSBs owners mention: NHTSA Recall 24V608; parts unavailable
Oil pump failure / engine starvation
Oil pump breaks suddenly with no prior warning or symptoms, causing complete engine shutdown without dashboard lights or noise. One owner reports BMW changed oil pump drive design quietly without issuing recall notification.
When: Occurs suddenly while driving; no mileage specified
Symptoms owners cite: Car shuts down without warning; No dashboard warning lights; No strange noises or prior symptoms; Engine will not turn over; Oil starvation
Repairs/costs cited: Oil pump replacement required; Volvo dealer confirmed oil starvation; BMW changed oil pump drive design but did not notify owners
Recalls/TSBs owners mention: No recall issued; design change made without customer notification
Oil leak
Significant oil leak occurs with pooling under vehicle. Repeated attempts to repair (filter, drain plug, gasket, air filter replacement) fail to resolve the leak.
When: Approximately 99,099 miles
Symptoms owners cite: Significant oil leaking onto ground; Oil pooling under vehicle
Repairs/costs cited: Oil filter, drain plug, drain plug gasket, and air filter replaced by independent mechanic and synthetic oil change performed; leak recurred; evaluated at Pep Boys; service performed at BMW dealer but failure persisted
Timing chain noise / loose timing chain
Loose timing chain with weak guide rails causes audible noise.
Symptoms owners cite: Timing chain noise
Synthesized from 14 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 5 most recent
The coolant pump on my BMW has failed due to a known recall issue (NHTSA Recall Number 24V608). Despite the recall being issued months ago, BMW has not provided a timely fix or remedy. As a result, the coolant pump began leaking, causing my vehicle to overheat and leak coolant, which has led to further damage and significant safety concerns. This issue put my safety and the safety of others at…
The contact owns a 2014 BMW 428I. The contact received notification of NHTSA Campaign Number: 24V608000 (ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a…
Car jyst shut down in the middle of the street without any dashbord lights, strange noises or symptoms. Won't turn over. After tow to BMW dealer they said oil pump broke. I took it to volvo dealer they said oil starvation. They changed design of oil pump drive but don't inform anybody to do it which is very unacceptable. And they should do recall on that. That was very dangerous situation. This…
I have tried reaching BMW USA 3-4 times since November 2024 until now. The representative said BMW is working on correcting the problem. I have CC the email that was sent this June 2025 with no replies. 1 year has passed since the recall was issued and BMW USA has not created a remedy/fix for the coolant problem. I had this car on the TURO car rental platform as I am a host on TURO. I…
The contact owns a 2014 BMW 428I. The contact received notification of NHTSA Campaign Number: 24V608000 (Engine and Engine Cooling, Electrical System); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted. The manufacturer was not made aware of the issue. The…
Had engine trouble with your 2014 BMW 428i?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the engine problem on the 2014 BMW 428i?
It's a documented issue but not catastrophic. 14 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Based on the 14 complaints filed, engine issues most often appear around 84,758 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2014/BMW/428i.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.