I recently bought a 2011 Range Rover Sport Supercharged & it had only 50k Miles on it...I guess the individual sold it because of the same reason, suspension & overall maintenance.
After Replacing Front Lower Control Arms, Bent Rim, Damaged Height Sensor & performing Steering Flush the clunk went away on mine.
I will list below the Repairs & Maintenance procedures that were performed - this is for information only & thought it might help anyone save some money.
Land Rover in Virginia & some so called specialists gave me an estimate between 8K-10K for the following Items
1. Control Arms Left & Right - Replace & Install New
Purchased on Ebay - Seller "Eurocars9101"
OEM Lemforder Front Left Lower Corntrol Arm - $187.00
OEM Lemforder Front Right Lower Corntrol Arm - $190.00
"Eurocars910"1 has raised the price to $250 the day after I negotiated from $193.00 to $187.00 & $190.00.. Guess it's coz of the Coronavirus pandemic.
2. Height Sensor Right Rear (with Variable Dampling Suspension) - Replace & Install new (Old one went bad).
Purchased from Checkered Flag Land Rover - Virginia Beach
LR023650 - $118.81
Shipping + Tax - $15.00 (Approx)
Total - $133.66
3. Rear Right Wheel (Rim) - Replace & Install New (Old Rim was Bent)
Purchased on Ebay - Seller "direct"
Range Rover Sport Supercharged OEM Rim - $249.00
"Direct" claimed that it was a take off Rim & had no cosmetic repairs done to it. When it arrived I saw the they had painted the Rim (didn't bother removing the weights before painting). Rim was not bent & was in a good condition.
4. Oil Flush (Drain Old & Add New) was done for the following
- Steering Flush
- Brake Flush - All Brake Pads & Rotors were Installed a month ago.
4 New Rotors (Brembo) - Brembo Website, - Not Sure if Brembo were OEM
4 New Brake Pads (Ferodo) - Ebay - Seller "partscontainer" - Not Sure if Ferodo were OEM
2 New OEM Brake Pad wear Sensor - Ebay - Seller "skyur"
- Engine Oil + Filter
- Differential (Front & Rear)
- Transfer Case
- Transmission (Pan Service was Performed)
Purchased the following items for Trans Service AutohausAZ
ZF Autp Trans Oil Pan & Filter Kit - $72.99
ZF Auto Trans Oil Pan Bolt - Total of 22 Bolts - $1.35 per Bolt
ZF Auto Trans Valve Body Sealing Sleeve - $17.04
Purchased the Trans Fluid on FCPEuro
ZF Lifeguard 6 Automatic Transmission Fluid - Total of 8L - $19.99 per Liter
Labor for Trans Pan Service - $250.00 (Approx)
5. Ignition Coil - Replace & Install New
Spark Plugs - Replace & Install New
Purchased on AutohausAZ
Bosch Ignition Coil - Total of 8 coils - $36.87 per Coil
NGK Spark Plug - Total of 8 plugs - $11.92 per Plug
Total Labor charged by my mechanic who is very experienced & highly rated, was between ($1000 & $1100) including Steering Fluid, Brake Fluid, Engine Oil + Filter, Differential Fluid (Front & Back), Transfer Case Fluid and ALIGNMENT.
After performing all the above, the Vehicle not only drives smooth but the Clunking noise went away as well.. I will replace the Stabilizer Bar Bushings (Front & Rear) & Stabilizer Links (Front & Rear) and I am sure that will complete reset the vehicle to factory.
Hope the information helps.
Thanks