Understand the damage first
A serious engine fault needs a considered assessment. We ask about the symptoms, previous repairs and service history, then discuss the checks needed.
Some problems can be repaired without a complete rebuild; others need dismantling to understand the damage.
Assessment before a major repair quote
Assessment before quotation
The condition, damage, engine specification and replacement-part availability determine the work. Strip-down investigation and the final repair are agreed separately.
See live prices →Compare rebuild and replacement options
The right option depends on the original engine’s condition, replacement availability and the condition and value of the car.
| Option | What to weigh up |
|---|---|
| Rebuild the existing engine | The damage found, parts required and the associated work on your own unit. |
| Fit a compatible replacement | Engine code, emissions specification, documented condition, included components and supplier terms. |
A used engine, a reconditioned unit and a rebuild of your own engine are different propositions. We explain the proposed parts and work before you decide.
Plan the associated work
An engine job can also involve fluids, seals, timing components and other related parts. These need to be identified in the quote. Tell us about previous overheating, oil-pressure warnings or timing failure so the assessment can address the cause as well as the damage.
A staged assessment for a major repair
Before choosing a rebuild or replacement, it helps to establish how the engine failed and what can be checked without dismantling. Depending on the symptoms, further testing or strip-down may be needed before the full condition is known. We agree that stage separately so you understand the investigation cost and what it can establish before committing to a larger repair.
Confirm the replacement specification
Engine code and emissions specification help establish compatibility. Associated equipment and the parts supplied with the replacement can affect the work involved.
We confirm the proposed unit and associated work so you can compare the complete job, rather than the engine price alone.
Frequently asked questions
Can you fit a replacement engine?
Yes. Compatibility, condition and availability need checking before we agree the job.
Can you give a fixed price immediately?
We need enough information about the engine and damage. Investigation or strip-down may be required first.
How long does a rebuild take?
It depends on the damage, machining, parts and workshop availability. We provide an estimate after agreeing the scope.
Related services
Your local Hertford workshop
Visit D & B Autocare at 12 Mimram Road, Hertford, SG14 1NN. We welcome drivers from Hertford and the surrounding towns.
Areas we cover & visit information →

















