1 ptsB,B1Official number: 6437
What might be the cause of a vehicle pulling to the left while driving in a straight line?

Description
Annex 1 pts. 6.5.3 and 6.5.4 pp. 11990 and 11991 of the Regulation of the Minister of Infrastructure of 18 September 2009 on the scope and method of conducting tests (Journal of Laws No. 155, item 1232)
Explanation
Correct answer: An improper wheel alignment.
The most common reason for a vehicle 'pulling' to one side is uneven air pressure in the tyres on the same axle or incorrect suspension geometry (e.g. wheel alignment). Another reason could be a fault in the braking system. Any such symptom is a sign of a technical malfunction that should be diagnosed and repaired at a garage as soon as possible.