Skip to content
WrenchConnect
NHTSA-Verified · Common Problems

2016 Mercedes Benz C Class Phev
Common Problems

Ranked from 148 federal NHTSA complaints. Every problem links to the complaint IDs behind it.

8
High severity
5
Medium
1
Low

14 Common Problems

Ordered by how often owners reported each one to NHTSA. The bar shows how common a problem is relative to the most-reported on this vehicle. Expand any problem to see the federal complaint IDs.

Sort by
  1. 1

    Engine Light Activation Due to PCV Valve Issues

    43complaints
    High severityEngine

    The engine light activates due to PCV valve malfunction, requiring expensive repairs.

  2. 2

    Positive Crankcase Ventilation (PCV) Valve Malfunction

    43complaints
    High severityEngine

    The PCV valve malfunctions leading to engine light activation and potential engine damage.

  3. 3

    Sunroof Malfunction

    34complaints
    High severityOther

    The sunroof malfunctions, including detachment, sticking, and leaking, posing safety risks.

  4. 4

    Power Steering Failure

    27complaints
    High severitySteering

    The power steering system fails, making the vehicle difficult to control and increasing crash risk.

    $200–$1,500est. power-steering / eps repair · 1–6 hrs labor
    Get local quotes
  5. 5

    Fuel smell in cabin during heating

    15complaints
    Medium severityFuel system

    The vehicle emits a strong fuel smell when the heat or defroster is turned on.

  6. 6

    Fuel Leak from Crankcase Ventilation System

    14complaints
    High severityFuel system

    The crankcase ventilation system is leaking fuel, causing a strong smell inside and outside the vehicle.

    $300–$1,200est. fuel line/tank repair · 2–6 hrs labor
    Get local quotes
  7. 7

    Airbag recall issues

    7complaints
    Medium severityElectrical

    Issues with Takata airbags leading to recalls and delayed repairs.

  8. 8

    Fuel line leak

    7complaints
    High severityFuel system

    Fuel lines leak, causing a strong fuel smell and potential fire risk.

    $300–$1,200est. fuel line/tank repair · 2–6 hrs labor
    Get local quotes
  9. 9

    Wheel Cracking and Leaks

    6complaints
    High severityOther

    Mercedes-Benz wheels are prone to cracking and leaks, posing a significant safety risk to drivers and passengers.

  10. 10

    Engine Misfire Due to Piston Failure

    5complaints
    High severityEngine

    The engine is experiencing cylinder misfires due to piston failures, requiring significant repairs.

    $200–$900est. ignition service (coils/plugs) · 1–4 hrs labor
    Get local quotes
  11. 11

    Engine Stall at Idle Due to Stop-Start System Failure

    4complaints
    Medium severityEngine

    The stop-start system malfunctions, causing the engine to stall at idle, leading to loss of propulsion and difficulty restarting.

    $150–$900est. stop-start system diagnosis · 1–4 hrs labor
    Get local quotes
  12. 12

    Fuel System Leaks

    3complaints
    Medium severityFuel system

    Fuel system leaks, particularly in the high-pressure pump and fuel hoses, leading to strong gasoline odors and potential hazards.

  13. 13

    Unavailability of parts for recall repair

    3complaints
    Low severityElectrical

    Parts required for the recall repair are unavailable, causing delays in addressing electrical issues.

  14. 14

    Defective rims

    2complaints
    Medium severityOther

    Mercedes-Benz AMG alloy rims crack and cause tire pressure failures.

Other years & sources

2018 Mercedes Benz C Class PhevAll NHTSA complaints for this vehicle →

Data source: U.S. National Highway Traffic Safety Administration (NHTSA) owner complaints and recalls. Problems are clustered and ranked from the complaint record; occurrence counts reflect corroborating complaints, not total incidence. Vehicle image is illustrative. Repair-cost figures are typical U.S. independent-shop ranges (parts + labor) for the class of repair shown — actual quotes vary by region, engine, and diagnosis; always confirm with a local shop.