Steering wheel spring grounding problem can accidentally deploy airbag. Recalled in oct 2017 but I'm told parts will not be available until may 2018. This is an unreasonably long time. I went to trade-in this car to purchase a new one and was told that no dealer can sell a car with a pending safety recall except "as is" through an auto auction, which lowers the value of my car by over $2,000…
2014 Mercedes-Benz C-Class steering problems
severe Owners of the 2014 Mercedes-Benz C-Class have filed 35 NHTSA complaints about the steering, typically surfacing around 45,785 miles at roughly $700 to repair (U.S. federal records, as of July 2026). Source: NHTSA Office of Defects Investigation. See steering across all vehicles →
Failure mileage
Complaints
35
Recalls
0
Avg fix
$700
| Model year | steering complaints |
|---|---|
| 2010 C-Class | 73 |
| 2011 C-Class | 35 |
| 2012 C-Class | 15 |
| 2013 C-Class | 47 |
| 2014 C-Class (this page) | 35 |
| 2015 C-Class | 28 |
| 2016 C-Class | 17 |
| 2017 C-Class | 15 |
| 2018 C-Class | 13 |
2crashes
1fire
When does it fail?
Of the 35 steering complaints filed for the 2014 Mercedes-Benz C-Class, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
What stands out
Owners have filed 35 steering complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
No new NHTSA steering complaint has been filed on this vehicle in over 8 years — the issue may be aging out of the active population.
The failure pattern owners describe
This 2014 C-Class steering cluster shows patterns of failure that compound into a liability. Start with the airbag: multiple owners report the driver-side bag deploying without any impact, causing facial lacerations and injuries, even after completing the October 2017 recall (17V627) that was supposed to fix grounding and clock spring issues. The recall repair didn't stop it from happening again.
Steering lock failure is the most frequent complaint—the electronic lock (ESL) seizes without warning, stranding owners unable to start or move the vehicle. Repair costs run $1,500–$2,000, which Mercedes routinely refuses to cover. One dealership reported performing 6+ such repairs monthly; owners note this is a known systemic defect. A few resort to aftermarket bypass devices.
Steering components themselves fail: clock springs break, modules separate internally, coupling bolts snap, and the wheel jams mid-turn. Electrical gremlins cascade: SRS lights stay on, horn quits, steering wheel buttons die, and one car caught fire while being driven.
One vehicle experienced violent steering jerks causing loss of control and a curb strike; Mercedes extracted EDR data without consent and denied coverage. Another went into full acceleration with a stuck throttle, crashed through walls and couldn't be stopped by braking—totaling the car.
Numerous owners couldn't get recall repairs done because parts were unavailable for months. Trade-in values tanked due to pending unrepaired recalls. Electronic ignition switches fail, leaving drivers stranded. This isn't a single issue; it's a cascade of connected failures in safety-critical systems.
Same Mercedes-Benz C-Class steering reports on nearby years: 2011 · 2012 · 2013 · 2015 · 2016
Failure modes owners describe
Inadvertent Airbag Deployment Due to Steering Column Grounding
Driver-side airbag deploys without collision or impact, often after recall repair was already performed. Owners report injuries from forceful, explosive deployment and excessive smoke/fumes. Root cause per manufacturer: insufficient electrical grounding in steering column components combined with broken clock spring allows electrostatic discharge to trigger deployment.
When: While driving; can occur after recall repair completion
Symptoms owners cite: Abrupt, unexpected airbag deployment during normal driving; No impact or collision preceding deployment; Injuries to face, head, hands, arms, wrists from airbag impact; Excessive smoke and fumes from deployment; SRS warning light illuminated; Clock spring breakage detectable via instrument cluster warning message
Codes mentioned: 1709P46C62, SRS warning light present
Repairs/costs cited: Recall repair (NHTSA 17V627, MBUSA Campaign 2017120024) involves installing ground wire to steering column and protective ring to steering column module. However, multiple owners report deployment occurring even after recall repair was completed.
Recalls/TSBs owners mention: NHTSA Recall 17V627 / MBUSA Campaign 2017120024 (October 2017, effective January 18, 2018); recall addresses grounding and clock spring issues but has proven ineffective for some owners post-repair.
Steering Wheel Lock/Electronic Steering Lock (ESL) Module Failure
Electronic steering lock mechanism seizes or freezes, leaving vehicle undrivable and occupants stranded. Part fails unpredictably without warning. Repair requires replacement of entire ESL module (approximately $1,500–$2,000) and reprogramming at dealership. Owners report this is a frequent occurrence at dealerships and a known systemic defect; some resort to aftermarket ESL Emulator bypasses.
When: Without warning; can occur at rest (vehicle won't start) or while driving. Some owners report multiple failures over vehicle ownership period.
Symptoms owners cite: Steering wheel locked in place, vehicle will not start; No warning light prior to failure; Vehicle left stranded and requires towing; Steering locked in up position (convenience feature malfunction) and will not lower; Vehicle unable to crank or start despite good battery; Ignition will not turn after multiple start attempts; eventual start after restart cycle
Codes mentioned: A25464 code on car, Steering lock modular fault
Repairs/costs cited: ESL module replacement required; cost ~$1,500–$2,000 plus programming at dealership. Owners note dealer reports 6+ repairs per month for this model. Some owners unable to pay and have resorted to aftermarket ESL Emulator bypass devices. Repair success and reliability of replacement unit uncertain per owners.
Recalls/TSBs owners mention: No recall issued; Mercedes-Benz has refused reimbursement for out-of-warranty repairs. One dealer service agent stated he believes it should be covered by recall or free repair.
Steering Column Clock Spring Failure with Associated Electrical Faults
Steering column clock spring breaks due to wear, triggering SRS warning light. Associated electrical failures include module breakdown, clicking sounds on turn, seized coupling bolt, and steering wheel jamming. Can occur after recall repair completion.
When: Mileage/timing variable; some failures occur after 70,000+ miles; one case at ~120,000 miles post-purchase.
Symptoms owners cite: SRS/airbag warning light remains illuminated; Loud clicking noise when turning steering wheel; Steering wheel seizes or jams mid-turn; Horn does not work; Steering wheel control buttons non-functional; Module separated or broken internally; Steering coupling connecting bolt failure
Codes mentioned: SRS warning light, Steering module failure code, Clock spring breakage indicator
Repairs/costs cited: Clock spring replacement and/or steering module replacement required; costs cited $1,630–$1,800+. One owner reports steering module broke and came apart; dealer and manufacturer disputed coverage as potential recall vs. defective part.
Recalls/TSBs owners mention: Steering recall 17V252000 and 17V627000 address some clock spring issues; however, owners report repairs completed under recall but failures recur, and manufacturer has refused to cover additional failures or clarify which recall applies to their specific failure.
Steering Wheel Jerking/Loss of Control (Electric Power Steering)
Electric steering system malfunctions, causing steering wheel to jerk or pull violently to one side without input. Owner lost control of vehicle on roadway, struck curb twice, and nearly hit oncoming vehicle. Incident occurred on a leased vehicle ~3 months old.
When: While driving on roadway; sudden onset
Symptoms owners cite: Steering wheel jerks/pulls violently to right without driver input; Loss of vehicle control; Driver unable to stabilize vehicle despite steering corrections
Repairs/costs cited: Vehicle was impounded by Mercedes for over one month; manufacturer extracted EDR data without owner permission (owner did not grant consent), analyzed it, and refused warranty coverage, claiming owner at fault. Repair cost not disclosed; owner ultimately responsible.
Recalls/TSBs owners mention: Manufacturer refused warranty coverage and claimed no manufacturer defect; extracted EDR data without proper authorization and required court subpoena for data release—owner reports this violated consumer law.
Accelerator Pedal Sticking/Unintended Acceleration
Accelerator pedal becomes stuck in engaged position, causing unintended full acceleration. Engine roars and vehicle lurches forward at high speed; brakes cannot stop the vehicle during acceleration. Vehicle crashed through detached garage wall and brick facade of condo before coming to stop. No airbags deployed despite severe impact.
When: Upon light throttle input; vehicle was stationary preparing to enter garage
Symptoms owners cite: Accelerator pedal stuck in engaged position; Engine roared; rapid acceleration without input; Brakes ineffective during acceleration phase; Vehicle traveled ~30 feet but totaled due to high-speed impact; No airbag deployment despite severe crash impact
Repairs/costs cited: Vehicle totaled in crash. Owner speculates possible cruise control malfunction or connection to steering column recall affecting accelerator function. Dealership unable to diagnose root cause; parts for steering recall unavailable so vehicle could not be fully inspected.
Recalls/TSBs owners mention: Vehicle was under recall (steering column issue as of November 2017) but parts unavailable at dealership; recall repair incomplete at time of incident. No manufacturer investigation of accelerator failure conducted.
Steering System Electrical Fire
Steering system spontaneously caught fire while vehicle was being driven on roadway. Owner heard loud noise, saw smoke, lost power steering, pulled into parking lot, exited vehicle, and fire developed. Fire department and police responded.
When: While driving on city street
Symptoms owners cite: Loud noise from steering system; Smoke visible; Loss of power steering function; Vehicle fire developed
Repairs/costs cited: Vehicle towed to Mercedes dealership for investigation; repair details not provided in narrative.
Electronic Ignition Switch Failure
Electronic ignition switch fails, causing vehicle to shut down intermittently or fail to crank and start completely. Owner left stranded at night with child in vehicle. Repair requires replacement of entire EIS at high cost; part backordered with no ETA. Dealership reports multiple vehicles with same failure simultaneously.
When: Intermittent failures; some sudden complete loss of function
Symptoms owners cite: Vehicle suddenly shut down while driving; Complete failure to crank or start; No power to dashboard lights; Vehicle stranded without ability to drive
Repairs/costs cited: Electronic Ignition Switch replacement required; cost quoted $2,787. Part on backorder with no ETA; dealership reported 5 other customers with identical failure at same time.
Recall Repair Parts Unavailability
Manufacturer issued safety recalls but critical parts were unavailable for extended periods (months or longer), delaying or preventing completion of recall repairs. Owners left driving vehicles with known safety defects and unable to trade-in or sell vehicles with pending recalls, resulting in financial loss.
When: At time of recall notice and for extended period thereafter
Symptoms owners cite: Recall notice received but dealer unable to obtain parts; Manufacturer unable to provide ETA for part availability; Vehicle remains unsafe and unable to be repaired for months
Codes mentioned: NHTSA Campaign 17V627000, NHTSA Campaign 17V252000, NHTSA Campaign 19V10000
Repairs/costs cited: Multiple recalls (17V627, 17V252, 19V10000) affected by parts shortages. Owner noted airbag recall (19V10000) parts unavailable; steering recall (17V627) parts unavailable for months after October 2017 recall notice—manufacturer could not confirm availability date until May 2018. Trade-in value reduced by $2,000+ due to pending unrepaired recall.
Recalls/TSBs owners mention: Multiple NHTSA campaigns issued (17V627 October 2017, 17V252, 19V10000 and others); however, parts distribution failures prevented timely execution of recalls.
Synthesized from 35 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 3 most recent
Steering while conducting
The car was stationary and when trying to start the steering was locked and ignition would not start. The car had the steering locked and electronic ignition switch spontaneously corrupted and required replacement.
Had steering trouble with your 2014 Mercedes-Benz C-Class?
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 steering problem on the 2014 Mercedes-Benz C-Class?
It's a meaningful issue. 35 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $700.
At what mileage does the steering typically fail?
Across the 11 complaints that reported odometer mileage, most steering failures cluster between 22,000 and 65,000 miles, with the median around 45,785. A quarter of owners report trouble before 22,000; a quarter make it past 65,000. Maintenance history matters more than the odometer alone — this is the reported failure window, not a guarantee.
What does it cost to fix?
Independent shops typically charge around $700 for steering 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 steering?
No active recalls currently cover steering 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/Mercedes-Benz/C-Class.
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.