Police stopped a man they saw driving on the A17 because his Vauxhall Vectra had a faulty headlight and it led to a three-year ban for drink-driving.
Pavels Gavrilciks was almost double the legal drink-drive limit when police spotted him at 4.35am on April 4.
They followed him to Cornfields, Holbeach, where he failed a roadside breath test.
Marie Stace, prosecuting, said an evidential reading revealed 68 microgrammes of alcohol in breath – the legal limit is 35mcgs.
Boston magistrates heard on Wednesday that Gavrilciks had a previous drink-drive conviction in 2013.
A second offence within ten years triggers an automatic three-year ban.
Gavrilciks (24), of Cornfields, was fined £340 and ordered to pay a £34 victim surcharge and £85 towards prosecution costs.
Presiding magistrate Steve Burgess said: “We have no alternative but to disqualify you from driving today and we are aware of the fact that you have a similar offence within a ten year period so the minimum disqualification we can impose today is one of three years and that we do.”
Magistrates offered Gavrilciks the chance to cut 36 weeks off the ban if he completes a rehabilitation course.
Solicitor Anita Toal, mitigating, said Gavrilciks was banned for 20 months for a drink-drive in March 2013, but was unable to attend the rehabilitation course because of work commitments and also the need to find an interpreter.
Mrs Toal said in the latest incident, it was the defective light that drew the police officers’ attention to him rather than the manner of his driving. Gavrilciks was aware the light was faulty and had intended to replace the bulb.