|Harrow Crown Court|
Andrew Nicholas Passer, 59, of Old Lodge Way has also been placed on the sex offenders register for seven years.
He fought the case, but was convicted by a Harrow Crown Court jury.
Passer was sentenced to six months imprisonment, suspended for two years.
He was also ordered to complete 150 hours community service work and pay £2,000 towards prosecution costs.
Passer denied, but was found guilty of sexually assaulting the woman, who cannot be named for legal reasons, in Honeypot Lane, Harrow on December 9, 2014.
He was acquitted of driving his MGB GT dangerously at the same time and place.