MERCEDES W171 - W172 - W203 - W204 - W205 - W207 - W209

QUAIFE rear differential ATB for all MERCEDES:
W171 class SLK
W172 class SLK
W203 class C
W204 class C
W205 class C
W207 class E
W209 class CLK
W211 class E
W212 class E
W215 class CL
W216 class CL
W217 class S
W218 class CLS
W219 class CLS
W221 class S
W222 class S
W230 class SL
W231 class SL 
(exactly models see at EXTRA INFO).

QUAIFE, manufacturer of Automatic Torque Biasing (ATB) helicar gear limited slip differential, of recognized worldwide prestige since 1980. The quality of QUAIFE is well demonstrated in all its products, being currently one of the leading manufacturers in the manufacture of LSD differential, close ratio gearkits  and gearboxes.

Unlike a limited slip disc differential, the Quaife ATB self-lock is based on gears instead of plates or clutch plates for operation. This means that it is much softer and will never block, they are progressive and adjust according to the loss of traction.
It does not lose power in acceleration like some plate style differentials.
For its installation, modification is required, simply replace the original with the new ATB Quaife differential.
Ideal for a competition or for a sporty driving (rallys, circuits, mountain, trackday ... etc)
No maintenance is necessary for proper operation.
Safe, progressive and seamless in action, the Quaife ATB differential never ‘locks’

• Controlled power is transmitted to all driven wheels, to maximise traction and minimise wheelspin, particularly in slippery conditions
• Fitment greatly reduces unwanted torque steer, understeer or oversteer
• Designed to work in harmony with road car electronic stability and traction control programs
• Improves braking performance on front wheel drive cars by reducing lock up and minimising ABS intrusion due to torque transfer action
• Reduces tyre wear, especially on front wheel drive cars
• Gear operated with no service components to replace – ever
• Direct replacement for factory standard ‘open’ differential unit
• Retains normal axle lubrication systems and maintenance schedule
• Recomended for Motorsport use and trackday. 

W171
SLK55 AMG, 
W203 - Class C
C55 AMG
W204 - Class C
C63 AMG, C63 AMG (507)
W205 - Class C
C63 AMG 
C63 AMG S (require codification)
C 350E
W207 - Class E
E500
E500 USA 
W209 - Class CLK
CLK 500 auto 7 speed 
CLK 550
CLK 55 from 01/2004
CLK 63 AMG 
W211 - Class E 
E280 CDi Auto 7 speed
E63 AMG Auto 7 speed
E320 CDi final drive A2193502014
E55 AMG Auto 5 speed - housing 2303510305
W212 - Class E
E63 AMG 
W215 - Class CL 
CL55 AMG grupo 3.65:1
W216 - Class CL 
CL63 AMG final drive 2213505614
CL500
W217 - Class S
S63 AMG 4 matic 
W218 - Class CLS 
CLS 63 AMG 
CLS 350 CDI 
W219 - Class CLS 
CLS 320 CDi 
CLS 500
CLS 55 AMG 
CLS 63 AMG 
W221 - Class S
S 500
W222 - Class S
S63 AMG 4 matic 
W230 - Class SL 
SL 500 Auto 5 speed
SL 600 Auto 7 speed
SL 55 AMG from 11/2003
SL 63 AMG Auto 7 speed
SL 65 AMG 
W231 - Class SL 
SL 63 AMG