How to protect your BMW G90 G99 M5 radiators from Damage - Zunsport Mesh Grilles

The BMW G90/G99 M5 is a masterpiece of engineering, a high-performance machine designed to thrill. But beneath that sleek exterior lies a vulnerability that every M5 owner must address: the exposed front end. Your M5's vital cooling components – radiators, oil coolers, and intercoolers – are sitting ducks for road debris, stones, and other hazards. A single impact can lead to costly repairs, and in the worst-case scenario, engine failure. That's why the Zunsport Mesh Grille Protection Kit, available at AUTOID, isn't just an accessory; it's an essential preventative modification.

Think about it: your M5 is designed for speed. The faster you go, the greater the force of impact from any object that strikes your front end. Even a small stone, kicked up at motorway speeds, can puncture a radiator or damage an oil cooler. This isn't just a theoretical risk; it's a common occurrence for owners of performance vehicles with exposed cooling systems.

• Costly Repairs: Replacing a damaged radiator or intercooler on an M5 is not cheap. We're talking about potentially thousands of pounds in parts and labour. The Zunsport kit is a far more affordable upfront investment that can save you a significant amount of money in the long run.
• Downtime: Even if you have comprehensive insurance, a damaged cooling component means your M5 is off the road. You'll be without your car while it's being repaired, which is a major inconvenience.
• Performance Degradation: Even minor damage to a radiator can reduce its efficiency. This can lead to overheating, especially during spirited driving or track days, potentially impacting your M5's performance and longevity.
• Engine Failure Risk: In the worst-case scenario, a significant impact can cause a catastrophic coolant leak, leading to rapid overheating and potential engine failure. This is the nightmare scenario every M5 owner wants to avoid.

1. Grille Positioning: Each upper grille has an inner hook and an outer clip.
   
   
2. Hook and Clip:
   • Hook the inner clip of the grille inside the bumper opening.
   • Push the opposite side (outer side) of the grille inward until the outer clip locks into place. You should hear a click.
     
     
3. Secure (if needed): If the clip doesn't feel fully secure, use your pry tool to gently push the metal tab of the clip down, locking it more firmly.
   
   
4. Repeat: Repeat the process for the other upper grille.

1. Lift the Car: Use a ramp, or a jack and axle stands, to safely lift the front of the car. Never work under a car supported only by a jack.
   
   
2. Locate Bolts: Underneath the car, locate the four OEM bolts securing the oil cooler area: two on each side (towards the front) and two further back.
   
   
3. Remove Bolts: Use your ratchet and 10mm socket to remove these four bolts.
   
   
4. Position Grille: Align the oil cooler grille underneath the oil cooler.
   
   
5. Reinstall Bolts: Use the OEM bolts you just removed to secure the Zunsport grille in place. Tighten them securely.

1. Align Holder: Align the number plate holder with the screw holes.
   
   
2. Reinstall Screws: Use the three Phillips head screws to reattach the number plate holder.
   
   
3. Reattach Number Plate: Reattach your number plate using either 3M tape (clean the surface first) or the original screws, depending on how it was originally mounted.

1. Grille Security: Double-check that all grilles (upper, lower, and oil cooler) are securely installed and that all clips are properly engaged.
   
   
2. Bolt Tightness: Ensure all bolts (especially those securing the oil cooler grille) are tightened appropriately.
   
   
3. Number Plate: Verify that this is secured.