2019-2021 BMW M2 Hood: Standard Aluminum vs. Carbon Fiber CS Upgrades
This guide covers the key differences, part numbers, and inspection points for replacing or upgrading the hood on a 2019-2021 BMW M2 Competition or CS.
- The main difference is the M2 Competition's aluminum hood versus the M2 CS's much lighter and more expensive carbon fiber hood with a functional vent.
- Upgrading to a genuine M2 CS hood (part # 51-71-8-082-720) requires additional parts like specific gas struts and the vent grille for proper fit and function.
- When buying used, inspect carefully for hidden repairs, kinks in the underlying structure, and clear coat failure on carbon fiber models.
- New hoods come unpainted. Budget for professional painting and blending, which can cost $400 to $1,000 or more.
Hood Variants: M2 Competition vs. M2 CS
The primary distinction for the 2019-2021 BMW M2 hood is the material and design between the M2 Competition and the M2 CS models. Understanding these differences is crucial for replacement or if you're considering an upgrade.
| Feature | M2 Competition Hood | M2 CS Hood |
|---|---|---|
| Material | Aluminum | Carbon Fiber Reinforced Plastic (CFRP) |
| Part Number | 41-00-8-073-538 (or similar) | 51-71-8-082-720 |
| Key Feature | Standard design with aggressive body lines. | Large central air vent for improved cooling and downforce. |
| Weight | Standard weight. | Approx. 50% lighter than the aluminum hood. |
| Finish | Requires paint to match the vehicle body color. | Comes with a gloss clear coat over the carbon fiber weave. |
Upgrading to the M2 CS Hood
Many M2 Competition owners choose to upgrade to the OEM M2 CS hood for its aggressive look and weight savings. However, this is not a direct swap. To ensure proper function, the conversion requires additional parts, including specific gas struts and the central vent grille assembly. Aftermarket CS-style hoods are also available, but their quality, fitment, and durability can vary significantly from the genuine BMW part.
Common Symptoms of a Damaged or Failing Hood
As a body panel, hood "failure" is typically related to physical damage or alignment problems rather than mechanical breakdown.
- Visible Damage: Dents, dings, deep scratches, or cracks from impacts or debris are the most common issues.
- Poor Alignment or Gaps: Uneven gaps between the hood and the fenders or front bumper can indicate a past accident, improper installation, or a problem with the latch mechanism. Some owners report minor factory alignment issues that can be adjusted.
- Hood Flutter at Speed: If the hood appears to lift or vibrate at highway speeds, it could be a sign of a failing latch or misalignment, which can be a serious safety concern.
- Difficulty Opening or Closing: A hood that is hard to latch or requires excessive force to close may have a misaligned latch or hinge. Sometimes, the dual-latch system on these cars can be tricky and may not engage on both sides if not closed properly.
- Clear Coat Failure (Carbon Fiber): The M2 CS carbon fiber hood can experience yellowing, hazing, or delamination of the clear coat over time, especially with prolonged sun exposure without proper UV protection.
Known Issues, Recalls, and TSBs
As of mid-2024, there are no specific recalls or Technical Service Bulletins (TSBs) issued by the National Highway Traffic Safety Administration (NHTSA) for the hood panel or latch assembly on the 2019-2021 BMW M2. Recalls for this vehicle range have addressed issues like knee airbags, fuel injectors, and seat belts, but none are directly related to the hood. Some owners on forums have discussed minor panel gap inconsistencies from the factory, which are typically adjustable.
Pro Tip: Hood alignment can often be adjusted at home with basic tools. The rubber bump stops can be twisted to adjust the height of the front corners, and the bolts connecting the hood to the hinges can be loosened for front-to-back and side-to-side adjustments. Make small adjustments and check the fit frequently.
🎬 Watch this guide on how to adjust and align your car's hoodBuying a Used 2019-2021 M2 Hood: What to Inspect
Purchasing a used OEM hood is an excellent way to save money, especially compared to the high cost of a new one. Here’s what to check to ensure you get a quality part.
- Verify the Material and Part Number: Confirm whether you are buying a standard aluminum hood or the more expensive carbon fiber CS version. Check for the OEM part sticker, usually located on the underside of the hood.
- Inspect for Hidden Repairs: Look at the underside of the hood. Check for non-factory welds, excessive body filler, or paint overspray. On an aluminum hood, look for waviness or ripples in the reflection, which can indicate a previous dent repair.
- Check for Bends and Kinks: Examine the structural bracing on the underside. Any bends or creases, especially near the front or corners, suggest the hood was involved in a collision. A bent hood will be very difficult to align correctly.
- Examine the Edges and Seams: Look for any signs of corrosion or bubbling paint along the folded edges of the hood, a common area for moisture to get trapped.
- For Carbon Fiber CS Hoods: Inspect the clear coat carefully under bright light. Look for yellowing, cloudiness, or spiderweb-like cracks in the resin, which indicate UV damage or stress. Ensure there is no delamination, where the carbon layers appear to be separating.
- Confirm All Mounting Points are Intact: Check the areas where the hinges and latch attach. Ensure the metal is not cracked, bent, or stripped.
Cost Comparison: New vs. Used M2 Hoods
Prices can vary significantly based on the hood type (standard vs. CS) and condition. Painting and installation are major additional costs.
| Part Type | Estimated Cost |
|---|---|
| New OEM (Aluminum M2 Competition) | $1,500 - $1,700 |
| New OEM (Carbon Fiber M2 CS) | $7,300 - $11,000+ |
| New Aftermarket (CS-Style Carbon Fiber) | $1,100 - $3,000+ |
| Used OEM (Aluminum) | $500 - $800 |
| Shop Labor (Installation & Alignment) | $150 - $400 |
| Shop Labor (Painting & Blending) | $400 - $1,000+ |
Warning: New hoods, whether OEM or aftermarket, are typically shipped unpainted and require professional painting, color blending to the adjacent fenders, and installation for a perfect match. This can often double the cost of the part itself.
Replacement Information
- Difficulty Rating: 3 out of 5.
- Estimated Time: 2-3 hours (not including painting).
- DIY Feasible: Yes, but it is strongly recommended to have a second person to help lift the hood off and on to prevent scratching the fenders. Professional alignment is recommended for achieving perfect panel gaps.
The basic replacement process involves marking the hinge locations, disconnecting the washer fluid lines and any sensor wiring, unbolting the old hood with a helper, transferring the latch mechanism and insulation to the new hood, and carefully installing the new hood. The most time-consuming part is aligning the panel gaps, which requires patience and small, incremental adjustments to the hinge bolts and rubber stoppers.
Frequently Asked Questions (FAQ)
Can I install a genuine M2 CS carbon fiber hood on my M2 Competition?
Yes, the genuine M2 CS hood (part number 51-71-8-082-720) fits all F87 M2 models. However, to complete the installation correctly, you will also need to purchase the specific M2 CS gas struts and the central vent grille. Using the standard struts may not support the lighter hood properly.
Is a cheap aftermarket carbon fiber hood a good alternative to the OEM M2 CS hood?
While significantly cheaper, aftermarket carbon fiber hoods can be a gamble. They may have issues with fitment, requiring significant adjustment to align properly. The quality of the carbon weave and the UV-protective clear coat may also be inferior to the OEM part, potentially leading to premature yellowing or fading. For guaranteed fit and quality, OEM is the safer choice.
Does a new hood come painted from the factory?
No, new OEM and aftermarket hoods are sold unpainted, typically in a black primer. You will need to have a professional body shop paint the hood to match your car's specific color code and blend the paint into the adjacent fenders for a seamless look.
Why are my hood gaps uneven?
Uneven hood gaps can be caused by a few things. If the car has been in a front-end collision, the underlying structure may be bent. More commonly, it's an alignment issue. The hood's position can be adjusted at the hinge bolts for side-to-side and forward/backward placement, and its height can be fine-tuned using the adjustable rubber bump stops located at the front corners of the engine bay.
Helpful Videos
Technical Specifications
OEM Part Numbers: 41-00-8-073-538 41008073538 51-71-8-082-720 51718082720 41-00-7-373-899 41007373899 41-61-2-449-807
Material: Aluminum (M2 Competition) or Carbon Fiber Reinforced Plastic (M2 CS). The M2 CS hood is approximately 50% lighter than the aluminum version.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- BMW M2:
- 🎬 Helpful Videos
- Hood Variants: M2 Competition vs. M2 CS
- Upgrading to the M2 CS Hood
- Common Symptoms of a Damaged or Failing Hood
- Known Issues, Recalls, and TSBs
- Buying a Used 2019-2021 M2 Hood: What to Inspect
- Cost Comparison: New vs. Used M2 Hoods
- Replacement Information
- Frequently Asked Questions (FAQ)
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