DGT TOPIC TEST · PREVENTATIVE MAINTENANCE
DGT Vehicle Mechanics and Maintenance Test 2026
Master vehicle mechanics tested on the theory exam: tire inflation pressures, legal tread depths, fluid levels, and safety systems.
430+
Official DGT Bank
30 questions · 3 faults
2026
2026 Reforms
RD 518/2026
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Key 2026 rules and updates for this topic
DGT Vehicle Mechanics and Maintenance Test 2026
Tire tread depth: 1.6 mm
Legal minimum tread depth across the main grooves of passenger car tires is 1.6 mm.
Tire pressure when cold
Tire inflation pressure must always be measured when tires are cold using an accurate gauge.
1Official exam questions: test yourself
What is the minimum legal tread depth on passenger car tires?
2Official exam questions: test yourself
When checking engine oil level with the dipstick, how should the vehicle be positioned?
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Frequently asked questions
Are these DGT test questions on Mechanics official?
Yes, all questions in Metruta’s Mechanics category follow the official computerized format used at DGT examination centers in Spain (3 options, single correct choice).
How many questions about Mechanics will appear on the final DGT exam?
The official 30-question exam selects questions across all 11 topics. Critical topics like Mechanics typically account for 2 to 4 questions per test paper.
How does Metruta AI help me pass the Mechanics topic?
Metruta’s AI coach explains the exact legal reasoning behind every question, highlights common traps, and adds your missed questions to your personal spaced-repetition ledger.