2015 Ford C-Max

Vehicle Specs & Maintenance Data

Engine
2L I4 Turbo
Oil Type & Capacity
5W-20 Full Synthetic (5.7 qts)
Transmission
CVT
Wheel Torque
100
ft-lbs

The 2015 Ford C-Max maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your Ford C-Max.

For oil changes, the 2015 Ford C-Max takes 5W-20 Full Synthetic motor oil with a capacity of 5.7 quarts. Brake fluid type is DOT 3, the recommended coolant is Motorcraft Gold (OAT), and transmission fluid is Mercon C. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.

When mounting wheels on the Ford C-Max, torque the lug nuts to 100 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.

Owners of the 2015 Ford C-Max have reported 5 common issues including "Hybrid Battery Degradation and Failure", "eCVT Transmission Shudder and Harsh Engagement" and "Brake System Judder and Premature Wear". Scroll down to the Diagnostics tab for detailed descriptions, solutions, and estimated repair costs.

There are 6 NHTSA safety recalls on file for the 2015 Ford C-Max. Check the Recalls tab below for full details.

Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.

The 2015 Ford C-Max uses 5W-20 Full Synthetic motor oil (5.7 qt capacity), requires lug nuts torqued to 100 ft-lbs, takes DOT 3 brake fluid.

2015 Ford C-Max Specifications
Motor Oil5W-20 Full Synthetic
Oil Capacity5.7 qt
Lug Nut Torque100 ft-lbs
Brake FluidDOT 3
CoolantMotorcraft Gold (OAT)
Transmission FluidMercon C
Transmission Fluid
Fluid Type
Mercon C
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Coolant
Fluid Type
Motorcraft Gold (OAT)
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Brake Fluid
Fluid Type
DOT 3
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Washer Fluid
Windshield
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Manufacturer-recommended maintenance schedule for the 2015 Ford C-Max. Always verify intervals against your owner's manual.

Service Item
Interval
Engine Oil & Filter
10,000 mi / 12 mo
Motorcraft 5W-20 full synthetic, 4.3 qt (2.0L Atkinson); less frequent due to EV mode
Tire Rotation
7,500 mi / 6 mo
Rotate every 7,500 mi
Cabin Air Filter
20,000 mi / 24 mo
Replace more often in dusty conditions
Engine Air Filter
45,000 mi / 48 mo
Inspect at 22,500 mi
Brake Fluid
37,500 mi / 36 mo
DOT 4; less wear due to regenerative braking
Transmission Fluid
45,000 mi
eCVT; Ford-approved CVT fluid; inspect at 60,000 mi
Coolant
150,000 mi
Multiple cooling circuits; Motorcraft Orange; inspect annually
Spark Plugs
100,000 mi
Motorcraft iridium; reduced wear due to EV mode
Serpentine Belt
90,000 mi
No traditional serpentine belt; electric accessories
Battery Coolant
150,000 mi
HV battery coolant; Ford-approved coolant; inspect level annually
12V Battery
48 mo
12V auxiliary battery; inspect annually
DTC Code Lookup

Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2015 Ford C-Max.

Common problems reported by 2015 Ford C-Max owners, with recommended fixes and estimated repair costs.

1

Hybrid Battery Degradation and Failure

The high-voltage hybrid battery pack degrades over time, causing reduced fuel economy, loss of electric-only driving range, and eventually a 'Stop Safely Now' warning that disables the vehicle. Some owners report the battery failing as early as 80,000-100,000 miles. The C-Max Energi plug-in version experiences more rapid degradation in hot climates.

Solution

Ford warranted the hybrid battery for 8 years/100,000 miles (10 years/150,000 miles in CARB states). If within warranty, the dealer will replace the battery pack free of charge. Out of warranty, consider a remanufactured battery pack from a specialist. Individual cell replacement may be possible at lower cost.

Est. Cost: $0 under warranty; $2,500 - $5,000 for remanufactured battery; $6,000 - $8,000 for new OEM battery
2

eCVT Transmission Shudder and Harsh Engagement

The electronically controlled continuously variable transmission (eCVT) develops a shudder or vibration during acceleration, particularly when transitioning between electric and gasoline power. Some owners report a harsh clunk when the gasoline engine engages, and the transmission may hesitate before accelerating from a stop.

Solution

Have the dealer reprogram the hybrid control module and transmission control module with the latest calibration. Ford issued TSBs addressing the engagement harshness. Check the transmission fluid level and condition. If internal damage is present, the eCVT may need rebuild or replacement.

Est. Cost: $0 - $200 for software update; $3,000 - $6,000 for eCVT rebuild/replacement
3

Brake System Judder and Premature Wear

The regenerative braking system on the C-Max causes inconsistent brake pedal feel, with the pedal sometimes feeling spongy and other times grabbing harshly. Front brake rotors warp prematurely, causing a pulsating pedal during conventional braking. The transition between regenerative and friction braking is not seamless.

Solution

Replace warped front rotors and brake pads. Have the dealer recalibrate the regenerative braking system blend with the friction brakes. Inspect the brake hydraulic system for air intrusion, which is common in hybrid vehicles with complex brake systems. Use OEM-spec rotors for best results.

Est. Cost: $300 - $700 for front brake job
4

Door Latch Failure (Recall)

The 2013-2016 C-Max is included in Ford's massive door latch recall. The door latch pawl spring tab can fracture, preventing the door from staying closed. This is particularly dangerous on the C-Max because the hatchback design means a rear liftgate latch failure can also occur.

Solution

Ford issued recalls 15S27 and 16S36 to replace all affected door latches with an improved design. Contact your dealer to verify your VIN. The repair is free of charge.

Est. Cost: Covered under recall
5

Engine Coolant Intrusion into Transmission (2.0L Atkinson)

The 2.0L Atkinson-cycle engine's internal heat exchanger can leak coolant into the transmission fluid. This cross-contamination turns the transmission fluid pink or milky and damages internal clutch packs and seals. If not caught early, both the engine cooling system and transmission suffer catastrophic damage.

Solution

If coolant contamination is detected early, flush the transmission thoroughly and replace the internal cooler. If the transmission has already been damaged, a full rebuild or replacement is necessary. Monitor transmission fluid color during regular maintenance. Replace the engine coolant-to-transmission heat exchanger.

Est. Cost: $500 - $1,000 for cooler and flush; $3,000 - $5,500 for transmission rebuild

6 NHTSA safety recalls for the 2015 Ford C-Max. Check your VIN at NHTSA.gov

1

BACK OVER PREVENTION: SENSING SYSTEM: CAMERA

Campaign: 25V695000 Date: 13/10/2025

Ford Motor Company (Ford) is recalling certain 2015-2019 Flex, 2015 Explorer, Lincoln MKT, Lincoln MKZ, 2015-2016 C-Max, Escape, Taurus, 2016 Fusion, 2018-2019 Taurus, 2019 Lincoln MKT, Fiesta, and 2020 Mustang vehicles. The rearview camera may display a distorted, intermittent, or blank image when the vehicle is in reverse.

Consequence

A rearview camera that fails to properly display an image can reduce the driver’s view behind the vehicle, increasing the risk of a crash.

Remedy

Dealers will inspect and replace the rearview camera as necessary, free of charge. Owner notification letters were mailed January 2, 2026. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 25SA9. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on October 14, 2025.

2

POWER TRAIN:AUTOMATIC TRANSMISSION:GEAR POSITION INDICATION (PRNDL)

Campaign: 22V413000 Date: 10/06/2022

Ford Motor Company (Ford) is recalling certain 2013-2019 Escape, 2013-2018 C-Max, 2013-2016 Fusion, 2013-2021 Transit Connect, and 2015-2018 Edge vehicles. The bushing that attaches the shifter cable to the transmission may degrade or detach.

Consequence

A damaged or missing bushing may prevent the vehicle from shifting into the intended gear, and cause the vehicle to move in an unexpected direction. Additionally, the vehicle may roll after the driver selects the 'Park' position. Either scenario increases the risk of a crash or injury.

Remedy

Dealers will replace the under hood shift bushing and add a protective cap over the shift cable bushing, free of charge. Interim owner notification letters, informing owners of the safety risk, were mailed July 1, 2022. Remedy parts are expected to be available in 4th Quarter 2022. Owner notification letters were mailed October 27, 2022. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 22S43.

3

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

Campaign: 20V331000 Date: 08/06/2020

Ford Motor Company (Ford) is recalling certain 2011-2014 Fiesta, 2013-2014 Fusion, 2015 Mustang, 2013-2015 Escape and C-Max, 2012-2015 Focus, 2014-2016 Transit Connect, 2013-2014 Lincoln MKZ, and 2015 MKC vehicles. These vehicles were previously recalled and repaired under recalls 15V-246, 16V-643 or 17V-210, however the repair may not have been completed properly. A component within the door latches may break making the doors difficult to latch and/or leading the driver or a passenger to believe a door is securely closed when, in fact, it is not.

Consequence

A door that is not securely latched could open while the vehicle is in motion, increasing the risk of injury to a vehicle occupant.

Remedy

Ford will notify owners, and dealers will inspect the latch date codes to confirm if the repair was done correctly, and replace the side door latches if necessary, free of charge. Owners will also have the option to inspect their own vehicle's door latches and enter the date codes into a website to determine if the latches are correct. Owner notification letters were mailed on July 27, 2020. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 20S30.

4

EQUIPMENT:ELECTRICAL

Campaign: 18V592000 Date: 10/09/2018

Ford Motor Company (Ford) is recalling certain 120V Convenience charge cords that were supplied with and sold for use with 2013-2015 Ford C-Max Energi and Fusion Energi vehicles and 2012-2015 Ford Focus Electric vehicles. Cords with part numbers FM58-10B706-AA, FM58-10B706-AB, FM58-10B706-AC, FM58-10B706-AD, FM58-10B706-AE and FM58-10B706-AF were manufactured without thermistors, and during vehicle charging, increased resistance in the house's outlet or wiring can cause the cord to overheat and melt.

Consequence

An overheated cord can increase the risk of a fire.

Remedy

Ford will notify owners, and dealers will replace the current cord with a new 120V convenience cord with a thermistor, free of charge. The recall began January 18, 2019. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 18S24.

5

LATCHES/LOCKS/LINKAGES:DOORS:LATCH

Campaign: 16V643000 Date: 06/09/2016

Ford Motor Company (Ford) is recalling certain model year 2012-2015 Ford Focus, 2013-2015 Ford Escape and Ford C-MAX, 2015 Lincoln MKC and Ford Mustang, and 2014-2016 Ford Transit Connect vehicles. A component within the door latches may break, preventing the doors from latching and/or leading the driver or a passenger to believe a door is securely closed when, in fact, it is not.

Consequence

A door that is not securely latched could open while the vehicle is in motion, increasing the risk of injury to a vehicle occupant.

Remedy

Ford will notify owners, and dealers will replace the door latches with an improved part, free of charge. The recall began on January 27, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S30.

6

ELECTRICAL SYSTEM:IGNITION

Campaign: 15V436000 Date: 08/07/2015

Ford Motor Company (Ford) is recalling certain model year 2015 Ford Escape vehicles manufactured April 1, 2014, to June 12, 2015, Ford Focus vehicles manufactured June 17, 2014, to June 12, 2015, and Ford C-Max vehicles manufactured April 22, 2014, to June 12, 2015. In the affected vehicles, the engine may continue to run after the key or the START/STOP engine button is turned to off. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 114, "Theft Protection and Rollaway Prevention."

Consequence

If the engine does not turn off as expected, someone could move the transmission shifter out of park and the vehicle may move unintentionally, increasing the risk of a crash.

Remedy

Ford will notify owners, and dealers will update the body control module software, free of charge. The recall began on July 27, 2015. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 15C06.

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C-Max — Other Model Years
20182017201620142013
See Also
2015 Ford C-Max Lug Nut TorqueBest Oil for 2015 Ford C-MaxAll Vehicles Using 5W-20 Full Synthetic OilAll Vehicles Using DOT 3Oil Change Guide: 2015 Ford C-MaxWiper Replacement: 2015 Ford C-Max