Alfa Romeo

HWM Alfa Romeo

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Alfa Romeo 159 Saloon

Alfa 159

Q4 Four Wheel Drive Differential

Q4Safer Sportiness

Alfa Romeo's permanently engaged 'Q4' traction control system creates a sure-footed drive without taking the pleasure away from the Alfa Romeo driving experience.

The control centre of this system means that "all four wheels are driven by Q4"; a Twin Differential mechanism, evolved from Torsen C.

The traction control operates permanently, shifting traction between the front and rear wheels. A maximum 57% torque can be driven to the rear wheels with a self-locking Twin Differential that manages the engine power transfer, leaving 43% traction through to the front wheels. This enables optimum handling in 'dry, neutral conditions', creating a rear-wheel drive sensation.

However, road and weather conditions change, so it's reassuring to know that this system automatically monitors wheel traction, shifting the power between front and rear, helping to match the right amount of power to each wheel for the road conditions, giving the driver a controlled, yet sporty drive.

HWM Alfa Romeo

Bridge Street
Walton-on-Thames
Surrey
KT12 1AT

Phone: 08444 708285
Fax: 01932 237802


OPENING TIMES

Sales

Location Map

Mon 08.30-18.00
Tue 08.30-18.00
Wed 08.30-18.00
Thu 08.30-18.00
Fri 08.30-18.00
Sat 09.00-17.00
Sun Closed

 



Service

Location Map

Mon 08.30-17.30
Tue 08.30-17.30
Wed 08.30-17.30
Thu 08.30-17.30
Fri 08.30-17.30
Sat 08.30-12.30
Sun Closed

 

 

Parts

Location Map

Mon 08.30-17.30
Tue 08.30-17.30
Wed 08.30-17.30
Thu 08.30-17.30
Fri 08.30-17.30
Sat Closed
Sun Closed