2011 Audi A1 four part of the development, reviews and specification

2011 Audi A1 four part of the development, reviews and specification
2011 Audi A1 four part of the development, reviews and specification
2011 Audi A1 four part of the development, reviews and specification

Published: by pafina

By the end of 2011 Audi will launch the marketing of the A1-wheel drive equipped with "four", currently engaged in testing the streets of Canada. As reported in recent months has therefore amended the Volkswagen PQ25 platform to install a four wheel drive system similar to those already proposed by the A3 and TT, with a viscous coupling Haldex electronically controlled and hydraulically activated (by a pack of clutch in oil bath ) mounted in front of the rear axle. On surfaces with perfect grip torque is distributed to 90-10 per cent, variable ratio up to 50-50 when the stations recorded a loss of adhesion. Also intended to evaluate the changes to the rear axle: the twist beam (used by the A1 front-wheel drive) it hinders the passage of the drive shaft.

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