2019 Bmw M4 Competition – Mastering Maintenance, Performance
The 2019 BMW M4 Competition represents the pinnacle of the F82 chassis, blending raw S55 twin-turbo power with a refined, track-ready suspension. This guide provides owners and enthusiasts with essential technical insights into maintaining, troubleshooting, and upgrading this high-performance machine for maximum longevity and speed.
Do you feel that surge of adrenaline every time you click the paddle shifter in your 2019 bmw m4 competition? You probably agree that this car is one of the most capable daily-driven track weapons BMW has ever produced. Owning a machine this precise requires a commitment to meticulous maintenance and a deep understanding of its unique mechanical needs.
I promise to walk you through everything from basic fluid services to the high-stakes world of crank hub fixes and performance tuning. We will explore the specific parts, tools, and safety steps needed to keep your M4 performing at its absolute limit. By the end of this guide, you will have a clear roadmap for DIY success and professional-level care.
Understanding the 2019 bmw m4 competition and Its Unique Upgrades
The 2019 bmw m4 competition is not just a standard M4 with a badge; it is a comprehensive evolution of the F82 platform. BMW engineers pushed the 3.0-liter S55 inline-six engine to 444 horsepower, an increase over the base model. This power is delivered through a revised Active M Differential and a more aggressive DSC (Dynamic Stability Control) mapping.
Mechanically, the Competition Package (ZCP) includes significantly stiffer springs, dampers, and anti-roll bars. These components work in harmony with the 20-inch forged 666M wheels to provide sharper turn-in and better mid-corner stability. Understanding these hardware differences is vital when you start shopping for replacement suspension components or aftermarket wheels.
Inside the cabin, the lightweight M sports seats with “cut-outs” and the M-striped seatbelts signal the car’s racing intent. While these are aesthetic, they reflect the weight-saving philosophy applied to the entire vehicle. Whether you are canyon carving or hitting the local circuit, these upgrades make the 2019 model a standout year for the F82 generation.
The S55 Engine: A Masterpiece of Engineering
The heart of the 2019 M4 is the S55 engine, featuring a closed-deck block design for increased rigidity. It utilizes two mono-scroll turbochargers and a liquid-to-air intercooler mounted directly on top of the engine. This setup minimizes the intake path, resulting in nearly instantaneous throttle response compared to traditional air-to-air systems.
However, this high-performance design introduces specific maintenance requirements, such as checking the intercooler coolant levels independently of the engine coolant. A leak in the top-mount intercooler can lead to moisture entering the intake tract, which is a critical issue to monitor. Always use BMW Group Genuine Fluids to ensure compatibility with the specialized seals in this system.
Critical Maintenance Intervals for Your S55 Engine
To keep your 2019 bmw m4 competition running like new, you must move beyond the “standard” dealership intervals. High-performance engines shear oil faster and generate significantly more heat than standard commuter engines. I recommend an oil change every 5,000 miles or once a year, regardless of what the onboard computer suggests.
When performing an oil change, use a high-quality 0W-30 or 5W-30 synthetic oil that meets the BMW LL-01 or LL-01FE specifications. You will need a 32mm socket to remove the oil filter housing cap and a 17mm wrench for the drain plug. Always replace the crush washer and the two small O-rings on the filter housing stalk to prevent annoying oil seeps.
Spark plugs are another vital service item often overlooked by casual owners. In the S55 engine, spark plugs should be replaced every 20,000 to 30,000 miles, especially if you have increased the boost. Use NGK Laser Iridium plugs and ensure they are gapped correctly to prevent high-rpm misfires under heavy load.
Brake System and Fluid Care
The M4 Competition comes with massive 4-piston front and 2-piston rear calipers. If your car is equipped with the standard steel rotors, monitor the pad thickness closely, as the aggressive compound wears quickly during spirited driving. For those with the Carbon Ceramic Brake (CCB) option, avoid using harsh wheel cleaners that can damage the rotor surface.
Brake fluid is hygroscopic, meaning it absorbs moisture over time, which lowers its boiling point. For a car capable of 150+ mph, fresh fluid is a safety requirement, not a suggestion. Flush your brake system every two years with a high-performance DOT 4 fluid like Castrol SRF or Motul RBF600 if you plan on visiting the track.
Addressing Common 2019 BMW M4 Competition Failure Points
Every legendary car has its “Achilles’ heel,” and for the 2019 bmw m4 competition, the primary concern is the crank hub. The crank hub is the component that connects the crankshaft to the timing chain drive. In high-torque scenarios, the friction-fit washer can slip, causing the engine to go out of time and potentially resulting in catastrophic valve-to-piston contact.
While the failure rate is relatively low on stock cars, it becomes a major risk once you add a Stage 1 or Stage 2 tune. Many owners opt for a “crank hub capture” or a full “pinned crank hub” replacement as preventative insurance. If you hear a sudden change in engine note or experience a drivetrain malfunction light under hard acceleration, stop the engine immediately.
Another common issue involves the plastic charge pipes that carry pressurized air from the turbos to the intercooler. These plastic pipes are known to crack or blow off under high boost. Swapping these for billet aluminum charge pipes is a relatively easy DIY project that provides peace of mind and improves engine bay aesthetics.
Oil Filter Housing Gasket (OFHG) Leaks
Keep a close eye on the front of your engine for any signs of oil pooling near the belt drive. The oil filter housing gasket eventually becomes brittle and leaks. This is a “must-fix” item because leaking oil can drip onto the serpentine belt, causing it to slip off and potentially get sucked into the front main seal, which can destroy the engine.
If you see oil grime around the housing, prepare for a weekend DIY project. You will need to partially drain the coolant and remove the intake manifold to gain access. Always use a Viton or high-grade replacement gasket to ensure a longer-lasting seal than the original factory rubber.
Performance Modifications for the Track and Street
The 2019 bmw m4 competition is an excellent canvas for performance modifications. The most popular starting point is a software tune. Platforms like Bootmod3 or MHD allow you to flash the Engine Control Unit (ECU) via the OBD-II port. A simple Stage 1 tune can unlock an additional 50-70 horsepower without requiring hardware changes.
For those looking to improve the exhaust note, the S55 engine is often criticized for its “raspy” sound. Installing an equal-length midpipe can transform the exhaust cadence into a smoother, more exotic tone. Pairing this with a set of high-flow downpipes will not only improve the sound but also reduce backpressure on the turbos, allowing them to spool faster.
Suspension tuning is the final piece of the puzzle. While the Competition suspension is great, a set of high-end coilovers from KW or Ohlins can provide even better body control. If you want to retain the factory Electronic Damper Control (EDC), look for “height adjustable spring” (HAS) kits that allow you to lower the car while keeping the dash-mounted suspension settings functional.
Optimizing the Cooling System
Heat is the enemy of performance. If you track your M4, consider upgrading the heat exchanger. An enlarged front-mount heat exchanger helps keep intake air temperatures (IATs) low during back-to-back laps. This prevents the ECU from “pulling timing,” which is the car’s way of protecting itself by reducing power when things get too hot.
Additionally, ensure your radiator fins are clear of debris. The low-slung intakes on the M4 act like vacuum cleaners for leaves and rocks. Periodically removing the front grilles to clean out the coolers can significantly improve thermal efficiency. This simple maintenance task costs nothing but can save your engine during a hot summer track day.
DIY Inspection Guide for Potential Buyers
If you are in the market for a 2019 bmw m4 competition, a thorough inspection is your best defense against expensive repairs. Start by checking the service history for the 1,200-mile “break-in” service. This service is mandatory for M cars and includes changing the engine oil and differential fluid. If this was skipped, walk away from the deal.
Inspect the carbon fiber reinforced plastic (CFRP) roof for any signs of clear coat peeling or yellowing. While rare, UV damage can affect the resin over time. Also, look under the front bumper for “scrape” damage; the M4 sits low, and a damaged oil cooler (which sits horizontally at the bottom) is a common and expensive casualty of hitting curbs.
Always perform a cold start. Listen for any metallic rattling from the exhaust or clicking from the engine bay. A healthy S55 will have a loud, high-idle bark for about 30 seconds before settling into a smooth hum. Use an OBD-II scanner to check for hidden codes or “shadow codes” that don’t trigger a check engine light but indicate underlying sensor issues.
Checking the Drivetrain and Tires
The 2019 M4 Competition usually comes equipped with Michelin Pilot Super Sport or Cup 2 tires. Check the date codes on the sidewalls; tires older than five years should be replaced regardless of tread depth. Look for uneven wear on the inside edges, which might indicate a botched alignment or worn control arm bushings.
During the test drive, pay attention to the Dual-Clutch Transmission (DCT). Shifts should be crisp and immediate. If you feel any shuddering when pulling away from a stop, it could indicate worn clutches or a need for a software adaptation. The DCT is a robust unit, but it requires fresh fluid and filters every 60,000 miles to stay reliable.
Safety and Handling: Getting the Most from the Competition Chassis
Driving a 2019 bmw m4 competition requires respect for its power delivery. The S55 engine delivers a massive spike of torque early in the rev range, which can easily break the rear tires loose in wet conditions. Always ensure your tires are up to operating temperature before pushing the car hard.
Safety is paramount, especially if you participate in high-speed events. Ensure your seatbelt pretensioners are functioning and that your brake pads have at least 50% life before a track day. I highly recommend investing in a high-quality tire pressure gauge. Correct pressures are essential for maintaining the contact patch and preventing “rolling” the sidewall during heavy cornering.
If you ever find yourself in a situation where the car feels unstable, trust the M Dynamic Mode (MDM). This setting allows for some slip and “drifting” but will intervene before the car spins out. It is the perfect safety net for learning the limits of your M4 without risking a costly trip into the guardrail.
Essential Tools for the M4 DIYer
To work on your M4, you will need a few specialized tools. A low-profile floor jack is necessary to reach the central jacking points. You will also need a set of Torx and E-Torx sockets, as BMW uses these extensively throughout the engine bay and chassis. A torque wrench is non-negotiable; aluminum bolts used in the suspension are “one-time use” and must be torqued to specific angles.
Finally, consider getting a dedicated BMW diagnostic tool like BimmerLink or ISTA. These allow you to register new batteries, retract the electronic parking brake for service, and read manufacturer-specific fault codes. Having the right data makes troubleshooting much faster and prevents you from throwing unnecessary parts at a problem.
Frequently Asked Questions About the 2019 BMW M4 Competition
How often should I change the spark plugs in my M4 Competition?
For a stock 2019 M4 Competition, BMW recommends changing spark plugs every three oil changes or roughly 30,000 miles. However, if your car is tuned or driven hard on the track, I recommend changing them every 15,000 to 20,000 miles to ensure optimal combustion and prevent coil pack failure.
Is the crank hub issue really a concern on the 2019 model?
The 2019 model still uses the same basic crank hub design as earlier F82s. While the failure rate is low on unmodified cars, the risk increases significantly with aftermarket tuning. If you plan to increase the power, installing a crank hub capture plate is a cost-effective way to add an extra layer of security.
What is the best oil to use for a 2019 M4 Competition?
You should use a high-quality synthetic oil that meets the BMW LL-01 or LL-01FE standards. Most owners prefer Pennzoil Platinum Euro 5W-40 or the factory BMW TwinPower Turbo 0W-30. The key is to use the correct viscosity and change it frequently to prevent sludge buildup in the turbo oil lines.
Can I daily drive the M4 Competition comfortably?
Yes, the 2019 M4 Competition features Adaptive M Suspension, which allows you to soften the dampers for city driving. While the seats are firm and the 20-inch wheels transmit more road noise, it is perfectly capable of being a daily driver for enthusiasts who prioritize performance over a “cloud-like” ride.
Final Thoughts on Mastering Your M4
Owning a 2019 bmw m4 competition is a rewarding experience that connects you to decades of racing heritage. By following a strict maintenance schedule, addressing known weak points like the charge pipes and crank hub, and choosing high-quality parts, you ensure that your M4 remains a precision instrument for years to come.
Whether you are performing your own oil changes or installing a new set of coilovers, always prioritize safety and use the correct tools for the job. This car was engineered with incredible attention to detail, and it deserves the same level of care from its owner. Take the time to learn its quirks, listen to its feedback on the road, and never cut corners on maintenance.
Stay safe, keep the shiny side up, and enjoy every mile behind the wheel of one of the finest driver’s cars ever made!
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