Physical Defects in a Car – Types of Defects, the Buyer’s Rights and How to Pursue a Claim
Buying a car with a physical defect is one of the most common problems drivers bring to a law firm. The seller assured you the car was in perfect technical condition – and a few weeks later the engine is burning a litre of oil every thousand kilometres, the suspension needs replacing and the car turns out to have been in a serious accident. The law gives buyers concrete tools – but using them effectively requires knowledge of the applicable rules, solid documentation and acting at the right time.
Contents
- What a physical defect in a vehicle is
- The most common physical defects in cars
- Purchase from a trader – the conformity of goods with the contract regime
- Purchase from a private individual – the statutory warranty under the Civil Code
- Additional claims based on mistake or fraud
- How to enforce your rights effectively – the order of steps
- How to protect yourself before buying a defective vehicle
- Practical examples from our caseload
- FAQ
What a Physical Defect in a Vehicle Is
A physical defect in a vehicle is a non-conformity of the item sold with the contract. In practice, this means the car does not have the properties it should have for the purpose arising from the contract or the circumstances of the purchase, does not have the properties the seller assured the buyer it possessed, is not fit for the purpose the buyer communicated to the seller, or was delivered in an incomplete state. Physical defects include both mechanical and technical faults and concealed vehicle history – accident damage, odometer tampering and hidden corrosion.
The Most Common Physical Defects in Cars
Concealed accident history. Unprofessionally repaired structural body components, replaced pillars, straightened longitudinal members, non-original paint across multiple body panels or uneven panel gaps are the most common signs of concealed accident repairs. Sellers frequently downplay a vehicle’s history, presenting serious accidents as “minor parking scrapes.” Damage to structural components can pose a safety risk in a subsequent collision – which is precisely why courts treat such damage as a significant defect justifying withdrawal from the contract.
Odometer tampering. A rolled-back odometer is one of the most serious and most common forms of fraud in vehicle sales. The actual mileage can be established by comparing the odometer reading with records in the vehicle’s electronic modules, service history at an authorised dealer, entries in the service booklet and the degree of wear of consumable components – pedals, steering wheel, seats, brake discs. A discrepancy between the declared and actual mileage is grounds for demanding a price reduction or withdrawing from the contract, and in extreme cases for reporting a suspected criminal offence.
Hidden engine and gearbox faults. Oil mixing with coolant indicating a blown head gasket, metallic engine noises, excessive oil consumption, jerking in an automatic gearbox or abnormal cylinder compression readings are defects that may not manifest during a short test drive but can be costly to repair. An expert’s report or diagnosis at a specialist workshop can establish whether the fault existed at the time of purchase.
Hidden corrosion. Perforating corrosion on the floor covered by mats or bitumen compound, rust on structural components concealed by filler, corrosion on sills hidden under plastic trim, or corroded suspension mountings painted over – these are typical ways of concealing corrosion from a prospective buyer. Corrosion of structural components is a significant defect because it directly affects road safety and the vehicle’s durability.
Malfunctioning electronics. Modern cars are heavily electronically controlled – faults in engine management, gearbox, ABS or ESP modules may only manifest after a period of use. Sellers sometimes temporarily disconnect the diagnostic system before a sale to conceal stored fault codes. Once the buyer plugs in a diagnostic tool, the codes return.
Suspension and braking system defects. Worn driveshaft joints, worn wheel bearings, damaged shock absorbers, cracked springs, play in the steering, worn brake pads and discs or leaks in the hydraulic braking system are defects whose consequences can be dangerous and are relatively easy to conceal during a short test drive.
Purchase from a Trader – The Conformity of Goods with the Contract Regime
Where a car was purchased from a trader – a dealer, car lot or showroom – and the buyer is a consumer, the provisions of the Consumer Rights Act on conformity of goods with the contract (Articles 43a–43g) apply. These have been in force in their current form since 1 January 2023. This is not the statutory warranty of the Civil Code but a separate consumer protection regime.
Goods are not in conformity with the contract where they do not correspond to the description or properties agreed by the parties, or do not possess the properties that goods of that type should have – including properties arising from the seller’s assurances about the vehicle’s technical condition.
The consumer’s available remedies are as follows. In the first instance, they may demand repair or replacement of the goods. If repair or replacement is impossible, disproportionately costly or the seller has refused to carry it out, the consumer may demand a reduction in price or withdraw from the contract – the latter being available where the non-conformity is significant.
The seller is liable for a non-conformity that existed at the time the goods were delivered and becomes apparent within two years of that date. If a non-conformity becomes apparent within one year of delivery, it is presumed to have existed at the time of delivery – the burden of rebutting this presumption lies with the seller.
The consumer’s rights in respect of non-conformity of goods with the contract cannot be excluded or limited by the seller – contractual provisions excluding these rights are ineffective.
Purchase from a Private Individual – The Statutory Warranty Under the Civil Code
Where a car was purchased from a private individual who is not a trader, the statutory warranty provisions of the Civil Code apply (Articles 556 and following). The buyer may demand repair of the defect, replacement of the item with one free from defects, a reduction in the price, or – if the defect is significant – withdrawal from the contract.
The seller is liable for physical defects for one year from the date the item was handed over to the buyer. If a defect becomes apparent within one year of delivery, it is presumed to have existed at the time of sale.
The parties may in the contract exclude warranty liability, but such an exclusion is ineffective if the seller fraudulently concealed the defect. A buyer who signs a statement “waiving the warranty” or “purchasing in the condition described in the advertisement” does not lose their claims if the seller knew about the defect and deliberately failed to disclose it.
Additional Claims Based on Mistake or Fraud
Independently of rights under the conformity of goods with the contract regime or the statutory warranty, where the seller deliberately misled the buyer or engaged in fraud – tampering with the odometer, falsifying service records, concealing knowledge of a serious accident – the buyer may avoid the legal consequences of a declaration of intent made under a mistake or as a result of fraud (Articles 84–86 of the Civil Code) and pursue compensation on general principles. Proving fraud is harder than demonstrating the defect itself, because it requires showing that the seller knew about the defect and deliberately concealed it.
How to Enforce Your Rights Effectively – The Order of Steps
The first step after discovering a defect is thorough documentation – photographs, video footage, workshop records from the diagnosis and an expert’s report from an independent automotive specialist. The vehicle should not be repaired without the seller’s knowledge, as this can make it harder to demonstrate the nature and extent of the defect later.
The complaint should be submitted to the seller promptly and in writing – preferably by recorded post with proof of delivery. The letter should describe the defect precisely, the circumstances of its discovery and the specific remedy demanded: repair, a reduction in price or withdrawal from the contract. When buying from a trader, the seller’s failure to respond to a complaint within 14 days of receiving it means the complaint is deemed accepted.
If the seller refuses to accept the complaint, the next step is a formal demand for payment or performance, and then – if the refusal continues – referring the matter to court. In court proceedings, the opinion of a court-appointed automotive engineering expert confirming the existence of the defect at the time the vehicle was delivered is of critical importance.
How to Protect Yourself Before Buying a Defective Vehicle
Before purchase, it is worth checking the vehicle’s history by VIN number through domestic and foreign databases, verifying the service history at the manufacturer’s authorised service centre and commissioning an inspection by an independent automotive expert. A professional pre-purchase report can reveal many hidden defects and is considerably cheaper than subsequent court proceedings. It is also worth taking the vehicle for a thorough test drive before purchase, checking all functions, and ensuring that the contract reflects the actual condition of the vehicle and all the seller’s assurances.
Practical Examples from Our Caseload
A client purchased a vehicle from a car lot whose seller had assured him it had “never been in an accident.” Several months later, during a routine inspection, a mechanic found signs of serious accident repairs. An expert’s report confirmed that the right front pillar had been replaced and the longitudinal member incorrectly repaired. The firm submitted a notice of withdrawal from the contract on grounds of non-conformity of goods with the contract. When the car lot refused, a claim was filed and an expert appointed who confirmed the vehicle’s condition. The court upheld the claim in full, ordering a full refund of the purchase price together with interest and costs.
A client purchased a car with a declared mileage of 90,000 km. Service history obtained from an authorised dealer showed the actual mileage exceeded 230,000 km. The firm secured the service records and commissioned an analysis of the vehicle’s electronic module data, which confirmed the falsification. Alongside reporting a suspected criminal offence, negotiations were conducted with the seller, who in the face of the evidence gathered agreed to a settlement and a significant partial refund of the purchase price.
A client purchased a premium car, in which warning lights for several electronic systems appeared on the drive home from the seller. It emerged that the comfort module had been flooded, and the seller had temporarily concealed the problem by disconnecting the diagnostic system. The firm drafted a complaint demanding repair; when the seller refused, a claim was filed. The court ordered the seller to cover the repair costs and reimburse the cost of hiring a replacement vehicle for the duration of the repair.
FAQ
Can I withdraw from the contract if a car has a physical defect? Yes, but only where the defect is significant – meaning it materially affects the vehicle’s usefulness or value. For minor defects, repair or a reduction in price is the more appropriate remedy. When buying from a trader, withdrawal is only available after an unsuccessful demand for repair or replacement, or where repair is impossible or disproportionately costly.
Is an expert’s report necessary? Formally no, but in practice it is often decisive. A professional technical report establishes that the defect existed at the time of sale – which is critical both for the seller accepting the complaint and for the outcome of any court proceedings.
What if I bought a car privately with the warranty excluded? A warranty exclusion in the contract is ineffective if the seller knew about the defect and deliberately concealed it. In such a situation, the buyer can avoid the legal consequences of a contract entered into as a result of fraud and pursue claims regardless of the exclusion clause.
Within what period must I report a defect? When buying from a trader, the seller is liable for non-conformity for two years from delivery of the vehicle. When buying from a private individual, the warranty period is one year from delivery. In both cases, the defect should be reported promptly upon discovery – delay makes it harder to demonstrate that the defect existed at the time of purchase.
Contact Us
Physical defect cases require prompt action – both because of the deadlines for reporting complaints and the need to preserve evidence before any repair of the vehicle is carried out.
It pays to be properly prepared: both in knowing what you can claim and in having a clear strategy.
We handle cases for drivers in Poznań and across the Wielkopolska region, with in-person and online consultations available for clients elsewhere in Poland.
Adwokat Marta Krzyżanowicz and Adwokat Michalina Koligot Law Firm “Adwokat dla Kierowców w Poznaniu”
ul. Adama Mickiewicza 18/3, 60-834 Poznań
tel. +48 795 001 536 · +48 531 335 713
kontakt@adwokatdlakierowcy.pl · www.adwokatdlakierowcy.pl
This text is for general information purposes only and does not constitute legal advice. Every case requires individual analysis.