2013 maintenance schedule
2013 BMW M3 Convertible Maintenance Schedule & Service Intervals
The 2013 BMW M3 Convertible is equipped with the Condition Based Service (CBS) system, which represents a modern evolution from traditional...
Last updated
September 26, 2026
Reviewed for service schedule clarity.
Key Takeaways
- The 2013 BMW M3 Convertible (E93) is powered by the S65 4.0L V8 engine and uses BMW's Condition Based Service (CBS) system, which uses sensors to calculate maintenance needs based on actual driving conditions .
- BMW Ultimate Care covers factory-scheduled maintenance for 3 years/36,000 miles, including oil changes, filter replacements, brake fluid, and spark plugs as indicated by the CBS system .
- Spark plugs are recommended for replacement every 37,000 miles—a unique requirement for the S65 V8 engine .
- Brake fluid requires replacement every 2 years regardless of mileage .
- The S65 V8 engine requires BMW-approved synthetic oil; oil changes are determined by the CBS system, which cycles approximately every 10,000 miles .
- Oxygen sensors are recommended for replacement at 120,000 miles .
Understanding the BMW Condition Based Service System
The 2013 BMW M3 Convertible is equipped with the Condition Based Service (CBS) system, which represents a modern evolution from traditional fixed-interval maintenance. BMW's maintenance guidelines are sensor-driven and center around the CBS system, which is cycled to occur every 10,000 miles, whether it involves a simple oil change and tire rotation or other standard service .
BMW utilizes electronic oil measurement to monitor the engine load on the current oil fill, based on driving style and distances. This information is monitored on the vehicle's Control Display; if the oil is outside its specified operating range, a Check Control message is displayed .
Service data is continuously stored in the vehicle's remote control, allowing your BMW service center to read this data and suggest an appropriate maintenance scope for your vehicle . Because the CBS system is the primary guide for your specific vehicle, the reference intervals provided below should be used for planning purposes, but the CBS system remains the final authority for when service is actually needed.
Factory Maintenance Coverage
The 2013 BMW M3 Convertible originally came with comprehensive factory coverage :
| Coverage Type | Duration |
|---|---|
| Basic Warranty | 4 years / 50,000 miles |
| Powertrain Warranty | 4 years / 50,000 miles |
| Corrosion Perforation | 12 years / Unlimited miles |
| Scheduled Maintenance (BMW Ultimate Care) | 3 years / 36,000 miles |
BMW Ultimate Care includes factory-recommended maintenance such as engine oil changes, engine filter replacement, brake fluid services, and spark plug changes as indicated by the CBS system . It also includes BMW TeleService, which communicates with BMW when your vehicle needs service.
BMW offers Ultimate Care+ for owners who intend to keep their car longer than 3 years/36,000 miles. Available in various levels, the basic plan covers brakes (except Carbon Ceramic brakes), wipers, and clutch. Enhanced plans extend coverage out to 7 years/125,000 miles .
Engine and Drivetrain Specifications
S65 V8 Engine Overview
The 2013 M3 Convertible is powered by the S65 4.0L naturally aspirated V8 engine, producing 414 horsepower at 8,300 rpm . This high-revving BMW Motorsport engine has specific maintenance requirements that differ from standard BMW models.
Engine Oil Specifications
The S65 engine requires BMW-approved synthetic oil. The oil capacity is approximately 9.0 liters . The exact viscosity grade is indicated in your owner's manual . Oil changes are determined by the CBS system based on driving conditions.
Brake Fluid
The 2013 M3 Convertible requires brake fluid meeting BMW specifications. BMW recommends brake fluid replacement every 2 years .
Spark Plugs
The S65 engine uses 8 spark plugs. BMW recommends replacement every 37,000 miles .
Scheduled Maintenance Summary
CBS Service Reference Intervals
The following reference intervals are provided for planning purposes. The CBS system remains the primary guide for your specific vehicle.
| Mileage / Time | Service Operations |
|---|---|
| 10,000 miles / 12 months | Synthetic oil and oil filter change (when indicated by CBS); coolant service |
| 20,000–40,000 miles | Fuel filter replacement |
| 30,000 miles | Brake fluid service |
| 37,000 miles | Spark plug replacement |
| 60,000 miles | Engine air filter replacement; brake fluid service; spark plug replacement |
| 120,000 miles | Oxygen sensor replacement |
Component-Specific Service Guidance
Engine Oil and Filter Service
The CBS system is the primary indicator for oil change intervals. BMW's guidelines center around the CBS system, which is cycled to occur approximately every 10,000 miles or 12 months . Always use BMW-approved synthetic oil meeting the required specifications .
Brake Fluid Service
Brake fluid must be replaced every 2 years . The high-performance M braking system generates extreme heat, and brake fluid degrades over time, reducing braking performance. Brake fluid may also be changed at the 30,000-mile mark, then every 60,000 miles thereafter .
Spark Plug Service
BMW recommends spark plug replacement every 37,000 miles for the S65 V8 engine . This is a more frequent interval than standard BMW models due to the high-performance nature of the S65 engine. The engine uses 8 spark plugs.
Engine Air Filter Service
The engine air filter is replaced with each second engine oil change . This service helps ensure clean air is supplied to the engine for combustion.
Cabin Air Filter (Interior Filter) Service
The interior (cabin) air filter is replaced at every engine oil change .
Rear Axle Differential Oil Service
The rear axle differential oil is replaced with each third engine oil change .
Transmission Oil Service
For vehicles with manual transmission, the transmission oil is replaced with each third engine oil change .
Oxygen Sensor Service
Oxygen sensors are recommended for replacement at 120,000 miles . The front and rear oxygen/lambda sensors should be replaced at this interval to maintain proper engine management and emissions performance.
Preventive Maintenance Summary Table
| Service Item | Reference Interval | Notes |
|---|---|---|
| Engine Oil & Filter | CBS system (~10,000 miles) | S65 V8 engine; BMW-approved synthetic oil |
| Brake Fluid | Every 2 years | DOT 4 specification |
| Spark Plugs | 37,000 miles | 8 plugs; S65 engine-specific |
| Engine Air Filter | With each 2nd oil change | Replace at scheduled intervals |
| Interior (Cabin) Filter | With each oil change | Maintains air quality inside vehicle |
| Differential Oil | With each 3rd oil change | Rear axle differential |
| Transmission Oil | With each 3rd oil change | Manual transmission |
| Fuel Filter | 20,000–40,000 miles | Maintains fuel delivery |
| Oxygen Sensors | 120,000 miles | Front and rear sensors |
Long-Term Ownership Considerations
Service Documentation
Maintaining complete service records is essential for warranty compliance and resale value. BMW service centers can read CBS system data stored in the vehicle to verify maintenance history . The Service and Warranty Information Booklet should be presented to your BMW center when maintenance is required, and confirmation of maintenance work should always be entered .
M Specialist Servicing
Given the M-specific components of the 2013 M3 Convertible, service should be performed by technicians with expertise in BMW M vehicles . Advanced technology—including modern materials and powerful electronics—requires specially adapted maintenance and repair methods .
Battery Health
Modern BMWs rely on the battery for proper CBS system function. Batteries typically require replacement every three to five years. Short trips, frequent starts, and exposure to extreme temperatures can reduce battery life.
Tire and Brake Considerations
The E93 M3 Convertible's additional weight (approximately 4,145 lbs curb weight) compared to the coupe places increased demands on the braking system and tires . Regular brake inspections and tire rotations are recommended to ensure even wear and optimal performance.
After-Warranty Service
Once the vehicle is out of warranty, find a reputable mechanic shop that specializes in European cars—ideally BMW specifically . Refer to the BMW maintenance schedule in your owner's manual for guidance on when to approve replacing consumables.
Frequently Asked Questions
What engine is in the 2013 BMW M3 Convertible?
The 2013 BMW M3 Convertible (E93) is powered by the S65 4.0L naturally aspirated V8 engine, producing 414 horsepower at 8,300 rpm . The engine has a 9.0-liter oil capacity and requires BMW-approved synthetic oil.
How does the Condition Based Service system work?
The CBS system uses sensors and algorithms to monitor driving conditions and calculate maintenance needs. Service data is stored in the vehicle's remote control, which can be read by BMW service centers . The system cycles approximately every 10,000 miles.
How often should the oil be changed?
The CBS system determines oil change intervals based on driving conditions . BMW's maintenance guidelines cycle approximately every 10,000 miles or 12 months, whichever occurs first.
When should spark plugs be replaced?
BMW recommends spark plug replacement every 37,000 miles for the S65 V8 engine . The engine uses 8 spark plugs.
How often should brake fluid be changed?
Brake fluid must be replaced every 2 years . Brake fluid may also be changed at the 30,000-mile mark, then every 60,000 miles thereafter .
When should oxygen sensors be replaced?
Oxygen sensors are recommended for replacement at 120,000 miles . Both front and rear oxygen/lambda sensors should be replaced at this interval.
When should the engine air filter be replaced?
The engine air filter is replaced with each second engine oil change .
How often should the differential oil be changed?
The rear axle differential oil is replaced with each third engine oil change .
What is BMW Ultimate Care?
BMW Ultimate Care offers free scheduled maintenance during the first 3 years or 36,000 miles of ownership. It includes factory-recommended maintenance such as engine oil changes, brake fluid, spark plugs, and other services as indicated by the CBS system .
What is the warranty coverage for the 2013 BMW M3 Convertible?
The 2013 BMW M3 Convertible came with a 4-year/50,000-mile basic and powertrain warranty, 12-year/unlimited-mile corrosion perforation warranty, and 3-year/36,000-mile complimentary scheduled maintenance .