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Bmw 335D Radiator Mounts

Bmw 335D Radiator mounts

Radiator mounts for your Bmw 335D start at $41.95, and AutoBuffy stocks 1 options from URO. Radiator mounts are the rubber-cushioned brackets that hold the radiator securely in the engine bay, isolating it from vibration and road shock. When they crack or collapse, the radiator shifts, stressing hoses and tanks until a leak or crack develops.

Signs your Bmw 335D needs new radiator mounts

  • Visible cracking, crumbling, or complete collapse of the rubber isolator pads at the top or bottom of the radiator
  • Radiator sits visibly tilted or shifted to one side rather than centered in the support cradle
  • Coolant hoses show stress kinks, unusual bends, or rub marks where they connect to the radiator tanks
  • Rattling or clunking noise from the front of the engine bay that changes with engine RPM or road bumps
  • Radiator plastic tanks show hairline cracks near the inlet and outlet necks from repetitive flex loading
  • Coolant loss with no obvious external leak — micro-cracks caused by radiator movement that only weep under pressure

Which radiator mount should you buy for your Bmw 335D?

Radiator mounts differ mainly in material durometer and whether they are sold as upper cushions, lower brackets, or complete mount kits. The right choice depends on how much vibration isolation you need and whether you are replacing one failed piece or refreshing the entire mounting system. OE-spec rubber is the default choice; polyurethane suits higher-stress or performance applications.

OE-Spec Rubber Cushion
Best for
Daily drivers wanting factory ride quality and noise isolation
What you get
Soft durometer rubber that absorbs vibration and matches original fitment tolerances
Polyurethane Mount
Best for
Higher-mileage vehicles or those driven in extreme heat or cold climates
What you get
Firmer, longer-lasting material that resists heat soak and ozone cracking better than standard rubber
Complete Upper + Lower Kit
Best for
High-mileage Bmw 335D where all mounts are worn simultaneously
What you get
Both upper cushions and lower brackets in one box, ensuring consistent support and a single service interval
OEM Dealer-Grade Replacement
Best for
Bmw 335D owners prioritizing exact factory fit and warranty coverage
What you get
Part engineered specifically for the Bmw 335D platform with verified dimensions and load ratings

Radiator mounts brands we stock for your Bmw 335D

URO
1 option · from $41.95

Replacing radiator mounts on a Bmw 335D

Easy45 minutes – 1.5 hoursSocket set with extensionsFlat-blade screwdriver or trim pry toolPliersDrain pan (if draining coolant)Flashlight or work light

Replacing radiator mounts on a Bmw 335D is a straightforward job that requires removing the upper radiator support bolts, carefully lifting or shifting the radiator just enough to access and swap the old rubber cushions or lower brackets, then reinstalling everything in reverse order. No special tools are needed and the mounts press or bolt into place without precise torque requirements. If you are replacing lower mounts, drain the coolant first and inspect hoses and the radiator itself while the assembly is out of the way.

Frequently asked questions

How much does it cost to replace radiator mounts on a Bmw 335D?
Parts start at $41.95 at AutoBuffy. A full set of upper and lower mounts typically costs more than a single cushion. Add one to two hours of shop labor if you are not doing the job yourself. Catching failed mounts early prevents the far higher cost of replacing a cracked radiator.
How long do radiator mounts last on a Bmw 335D?
Radiator mounts are rubber components with no fixed replacement interval. Most last somewhere between 80,000 and 150,000 miles, but heat cycling, road salt, and oil contamination accelerate decay. Inspect them any time you replace coolant hoses or the radiator itself, and replace them proactively if the rubber is visibly cracked or compressed flat.
Can I drive my Bmw 335D with a broken radiator mount?
Short distances are possible, but it is not advisable. A loose radiator rocks under acceleration and braking, repeatedly stressing the inlet and outlet tanks. That flex leads to cracked plastic tanks, torn hoses, or a sudden coolant dump — all of which can cause engine overheating within minutes. Replace failed mounts promptly.
Are radiator mounts on the Bmw 335D upper, lower, or both?
Most Bmw 335D radiators use both upper cushion isolators and lower bracket mounts. The upper mounts are typically rubber grommets or bushings that slot into tabs on the radiator support. The lower mounts are brackets or rubber pads that cradle the bottom of the core. Check your specific 2009–2011 production run, as designs can vary.
Will a bad radiator mount cause my Bmw 335D to overheat?
Not directly, but it creates the conditions for overheating. A shifting radiator can kink or pull hoses loose, allow the radiator to contact the fan shroud, or crack the plastic end tanks — any of which can cause rapid coolant loss. If your Bmw 335D is running hot and no other cause is obvious, inspect the mounts.
Do I need to drain the coolant to replace radiator mounts on a Bmw 335D?
For upper mounts only, draining is usually not required — you lift the radiator slightly without disconnecting hoses. Replacing lower mounts or a complete kit often means dropping the radiator far enough that draining coolant first is the cleaner, safer approach. Having a drain pan and fresh coolant ready is good practice either way.

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