
DBA Brakes · Part number DBA3420S · NZ$415.00 incl. GST
Need new disc brake rotors for your European ride like a BMW 5 Series or X5? These rotors are your main squeeze when it comes to stopping safely.
NZ$415.00 including GST. Part number DBA3420S.
Disc Brake Rotor Replacement Guide — Featuring DBA
> Disc brake rotors are absolutely crucial for your BMW's braking. They team up with the brake pads to bring you to a halt. Over time, rotors can get worn down, warped, or even crack from all the heat and friction, especially if you're doing a lot of stopping and starting in models like the BMW 5 Series and X5.
Symptoms That Led You Here
• Squealing or grinding noises when braking
• Vibration or pulsation felt in the brake pedal
• Reduced braking performance or longer stopping distances
• Visible cracks, grooves, or excessive rust on the rotor surface
Will it pass WOF?
Worn or damaged brake rotors? Yeah, that's a quick way to fail a WOF here in New Zealand. Your rotors need to be within those minimum thickness specs and free of any nasty cracks or damage to pass the test.
🛠️ Bob's "Get It Done Right" Companion Checklist
Before you even think about touching those brakes, mate, safety first! Grab yourself some Brake Cleaner to blast away all that brake dust – you don't want to be breathing that in. A bit of anti-seize caliper grease will keep things moving smoothly. Slap on some safety glasses to protect your peepers and some nitrile gloves to keep the hands clean. Trust me, you'll thank me later. Never get under a car supported only by a jack - use proper stands!
DIY or Workshop?
Difficulty: 7/10
Estimated Time: 2-3 hours per axle
Tools Required: Jack and stands, lug wrench, socket set, torque wrench, brake cleaner, rotor puller (optional)
Expert Recommendation
Worn brake rotors are a no-go for safe and sound driving. Swapping them out will get your braking back to top-notch. The DBA rotor is a solid choice, especially if you're after performance, but CARFIX has a stack of options to fit every budget. Pop into Bob's Shop – I'm always keen to help you find exactly the right part for your BMW.
Fitment Notes
Make sure these rotors fit your exact BMW model and trim. Some models might have different rotor sizes, or you might need special tools. Double-check fitment for BMW 5 Series (2017-2020), 7 Series (2015-2020), X5 (2018-2023), and X3 (2017-2020).
Bob's your uncle for all your CARFIX needs!
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🛠️ Bob's Pro Tip: Do the Job Right!
> GDB1840)](/parts/GDB1840) to ensure a perfect bed-in and get the job done properly first time!
🧰 What Else You'll Need:
• Safety First: Never work under a vehicle supported only by a jack. Always secure it on heavy-duty safety jack stands.
• Brake Dust Protection: Keep a pack of Nitrile Gloves handy to protect your hands from grease and dust.
• Clean and Prep: Use Brake Cleaner to clean the anti-corrosion shipping oil off the new rotors before mounting the calipers.
• Lubrication: Apply caliper grease to caliper slide pins and pad contact points to prevent squealing.