Problems · by component

2016 Ford Fiesta engine problems

34 owner complaints to NHTSA about the 2016 Ford Fiesta cite engine, 19% of all 179 complaints for this model year.

Complaints
34
19% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
01 —Owner reports

What owners say about the engine

Verbatim from NHTSA complaints, newest first
“I am reporting a severe safety defect regarding a sudden loss of motive power caused by the internal oil pump drive 'wet belt' system on my 2016 Ford Fiesta SE 1.0L EcoBoost (Manual Transmission). While driving, the vehicle's engine oil pressure warning light illuminated. Shortly thereafter, the vehicle suffered a sudden and severe loss of engine power, dropping speed drastically on a public roadway. This sudden loss of throttle response and speed placed me and surrounding traffic at a severe risk of a rear-end collision. This exact mechanical failure mode—where the oil pump drive belt degrades, strips its teeth, and clogs the oil pickup screen—is identical to the defect described in Ford Safety Recall 23S64 (NHTSA Campaign 23V905000). However, because my vehicle is a manual transmission model, Ford has excluded my VIN from the active safety recall. This manual configuration shares the identical defective 'wet belt' component design and poses the exact same 'unreasonable risk to motor vehicle safety' currently under active NHTSA evaluation. I am requesting that the NHTSA force Ford to expand Safety Recall 23S64 to include manual transmission 1.0L models to…”
Owner complaint to NHTSAFiled Oct 21, 2026EngineODI 11772736
“The contact owns a 2016 Ford Fiesta. The contact stated while driving approximately 60 MPH, the vehicle was losing motive power. The check engine warning light was illuminated. The vehicle was taken to the dealer to be diagnosed and it was determined that the spark plugs needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the same dealer who diagnosed the vehicle and determined that the ignition coils needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken to an independent mechanic who diagnosed the vehicle and determined that the TCM needed to be replaced. The vehicle was not repaired. The contact researched online and related the failure to Customer Satisfaction Program: 14M02 (Power Train); however, the VIN was not included. The manufacturer was informed of the failure and referred the contact to NHTSA Hotline to report the failure. The failure mileage was approximately 130,000.”
Owner complaint to NHTSAFiled Jul 24, 2025Power train, Engine, Electrical systemODI 11675917
“Customer satisfaction program 16B11 covers a faulty high speed cooling fan relay. This bulletin was issued on April 5, 2016. I purchased the vehicle on [XXX]. An incorrect relay was installed at the factory, and the program should have replaced the relay with the correct part. This was not performed on my vehicle before I purchased it from Sheehy Ford of Ashland. The faulty relay failed, melting the fuse box in the process and causing the vehicle to overheat and cause permanent severe engine damage. Remnants of the melted relay show the part number, which matches the obsolete part number. Visual comparison of the faulty relay matches the obsolete part as well, and differs from the correct superseded part number relay outlined in the 16B11 bulletin. Ford Motor Company insists my vehicle was not a part of this program and any repairs will not be covered. The build date, make/model/engine, assembly plant and most importantly, part number of the relay and mode of failure exactly match the 16B11 CSP bulletin. Ford denies that there is any issue with my vehicle. Local Ford dealers refer me to Ford Motor Company to escalate this problem, but Ford refuses to investigate.”
Owner complaint to NHTSAFiled Jul 2, 2025Electrical system, EngineODI 11670906
“Vehicle was traveling on an interstate highway when the oil indicator lamp lit, and the car immediately lost power, putting it in danger of being rear-ended. I researched any recalls and found "Part 573 Safety Recall Report 23V-905", which only covers two different models, the Focus and the Eco Sport, with precisely the same EcoBoost 1.0 Liter engine. I recently sent it to an independent service station to perform that which the recall describes, as a recall notice did not happen, but the service foreman stated it cannot be successfully repaired, as the oiling system was completely compromised, causing catastrophic damage to the valves, cylinders, turbo system, and vacuum pump.”
Owner complaint to NHTSAFiled Sep 18, 2024EngineODI 11615180
“The contact owns a 2016 Ford Fiesta. The contact stated while driving at approximately 30 MPH, and depressing the accelerator pedal, the vehicle failed to accelerate as intended and the vehicle started shuddering. The contact pulled over to the shoulder of the roadway to restart the vehicle, but the failure reoccurred. The messages "Mobilizer Malfunction" and "Engine Service" were displayed on the instrument panel. The local dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 138,000.”
Owner complaint to NHTSAFiled Apr 10, 2024EngineODI 11582109
“The contact owns a 2016 Ford Fiesta. The contact stated that the vehicle failed to reverse as needed. The contact stated that while driving, the vehicle was skipping third and fourth gears. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the transmission control module needed to be replaced. The contact informed the dealer about the warranty coverage, but the vehicle was not repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline. The failure mileage was approximately 122,000.”
Owner complaint to NHTSAFiled Jan 5, 2024Power train, EngineODI 11563742

Showing 6 of 34 reports. Read every report on NHTSA.gov.

Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 30, 2026NHTSA vehicle page

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.

Other 2016 Fiesta problem areas