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Old 01-10-2013, 09:13 AM   #6
Westrace
Registered User
 
Join Date: May 2012
Location: SoCal
Posts: 178
My Ride: 06 G35, 04 M3 Coupe
My main belt tension pulley is hydraulic but I think the one on the AC belt has always been mechanical I think. I notice the cost does vary from vendor to vendor. Tischer has it for $99 while ECS Tunnings about $67. I'll be doing my water heater and will replace the pulleys on the main belt, but I think I'll wait on this one. When I spin it, it seems pretty quiet - no noise. Worse comes to worse, I'll be driving without the AC :-).

Here's my part list:
Mechanical Catalog - 2004 - BMW - M3
cooling system, thermostat M3 $44.39 $8.88 $35.51 $0.00 $35.51 Delete From Cart
Collision Catalog - 2004 - BMW - M3
cooling system, cooling, water pump, water pump assy M3 $499.42 $99.88 $399.54 $0.00 $399.54 Delete From Cart
Collision Catalog - 2004 - BMW - M3
cooling system, cooling, water pump, water pump assy gasket M3 $8.84 $1.77 $7.07 $0.00 $7.07 Delete From Cart
Collision Catalog - 2004 - BMW - M3
cooling system, cooling, water pump, thermostat gasket M3 $4.74 $0.95 $3.79 $0.00 $3.79 Delete From Cart
OEM Catalog
O-RING $1.87 $0.37 $1.50 $0.00 $3.00 Delete From Cart
OEM Catalog
O-RING $2.16 $0.43 $1.73 $0.00 $1.73 Delete From Cart
Collision Catalog - 2004 - BMW - M3
cooling system, cooling, belts & pulleys, tension pulley HYDRAULIC TENSIONER, adjust $50.59 $10.12 $40.47 $0.00 $40.47 Delete From Cart
Collision Catalog - 2006 - BMW - M3
cooling system, cooling, belts & pulleys, tension pulley HYDRAULIC TENSIONER, idler $49.63 $9.93 $39.70 $0.00 $39.70 Delete From Cart

Last edited by Westrace; 01-10-2013 at 09:14 AM.
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