Used engines: the pitfalls to avoid before buying
Check the general condition of the engine
Before any transaction, it is essential to thoroughly examine the desired engine.
Visual inspection: Look for signs of leaking oil, coolant, or other fluids. Suspicious marks may indicate sealing problems or neglected maintenance.
Condition of the wear parts: Components such as belts, seals, and filters must be in good condition. Premature wear can lead to major malfunctions.
Favor reliable engines
Not all engines are created equal in terms of reliability.
Engines to avoid: Some engine blocks are known for their lack of reliability. For example, the 1.2 TCe engines from Renault and Dacia, as well as the 1.2 PureTech from Citroën and Peugeot, have been singled out for recurring problems.
Recommended engines: Petrol engines that are more than 8 years old, without turbo and with proven technology, are often more robust. Similarly, older naturally aspirated diesels are known for their longevity.
Avoid critical used parts
Some used parts should be avoided because of their importance for the safety and reliability of the vehicle.
Ground connection and braking elements: Used wishbones, ball joints, connecting rods, steering wheels and shock absorbers should be avoided, as their actual condition is difficult to assess.
Internal wear parts: Components such as the clutch, flywheel, spark plugs, belts or water pump, when used, can have a high risk of failure.
Make sure of the origin and guarantees
Transparency about the origin of the engine and the warranties offered is essential.
Engine history: Ask for documents that show regular engine maintenance, such as service books or maintenance invoices.
Guarantee: Opt for sellers who offer a warranty on the engine. For example, Moteur Livré offers a 3-month warranty on its motors, ensuring peace of mind.
Call a professional for the assembly
Improper mounting may void the warranty and cause damage.
Expert Installation: Entrust the installation of the engine to an automotive professional. At Moteur Livré, the warranty is activated when the assembly is carried out by a specialist, attested by an invoice.
Sources:
1. Used Engine Buying Guide – Engine Delivered
2. Engine Reliability – Auto Plus
3. Advice on used car parts – What to choose