CPR Part 35 compliant expert technical reports for vehicle disputes. Small claims, Financial Ombudsman Service, and county court proceedings. Reports produced by a practising automotive diagnostic specialist with 28 years of professional experience.
Jeremy Vinnicombe, sole principal of Autodiag. 28 years of professional automotive diagnostic experience across independent workshop, fleet, and specialist environments. Manufacturer-level system access across all major brands. RMI Academy of Automotive Skills trained. Fully VAT-registered sole trader with motor trade, public liability, and employers liability insurance.
Reports are prepared in the name of Autodiag, referenced as AUTOD-EXPR-[YEAR]-[NUMBER], and carry a signed CPR Part 35 statement of truth. My overriding duty is to the court, not to the instructing party.
My duty under CPR Part 35 is to the court. Opinions are based solely on documented evidence and professional expertise. If the evidence does not support a claim, I will say so before a report is commissioned.
Every report includes a compliance statement, declaration of instructions, full list of documents considered, qualified technical opinions, acknowledged limitations, and a signed statement of truth. Ready for direct submission.
All reports are based on documentary evidence including workshop inspection reports, fault code records, manufacturer technical data, and case correspondence. Vehicle inspection can be arranged where required.
Timing chain stretch, guide failure, compression loss, bearing failure, oil starvation. Pre-existing vs owner-caused determination with reference to manufacturer service data.
Underboost, overboost, oil feed restriction, bearing failure. Root cause analysis distinguishing design fault, wear, or abuse from documented diagnostic findings.
ECU failure, wiring faults, sensor failure, CAN bus issues. Fault code interpretation and root cause analysis from diagnostic scan records.
Gearbox failure, clutch, differential, DSG and automatic transmission faults. Pre-existing defect analysis for used vehicle disputes across mileage and ownership timeline.
Technical service bulletins, known design faults, model-specific failure patterns. Applied to mileage and ownership timeline to establish pre-existing defect status under the Consumer Rights Act.
Consumer Rights Act s.9 satisfactory quality analysis. Finance provider disputes under s.75 CCA. Financial Ombudsman Service submissions. Small claims and county court proceedings.
Four steps from initial contact to signed report. Typical turnaround is five to seven working days from receipt of all documents.
Send inspection reports, diagnostic records, warranty documents, and correspondence by email. The more documentation provided, the stronger the output.
A short call to cover the background, ownership timeline, and technical context. Your knowledge of the vehicle is captured alongside the paperwork.
Full CPR Part 35 compliant expert technical report. All documents listed. Opinions clearly stated and qualified. Limitations acknowledged throughout.
Final PDF issued with wet signature and statement of truth. Report reference AUTOD-EXPR-[YEAR]-[NUMBER] assigned. Ready for direct submission.
Fees are agreed in advance. In many cases where a claim succeeds, the expert witness fee is recoverable from the respondent as part of the settlement.
"The report was submitted to the Financial Ombudsman Service. The FOS subsequently indicated, on the basis of rule 11.2, that the respondent companies had no standing to contest the claim. The expert witness fee was validated by the FOS and added to the claim as a recoverable cost."
Complex multi-party cases or cases requiring physical vehicle inspection are quoted individually. Contact first to discuss your situation before committing.
Disclaimer. This service provides independent expert technical opinion only. Autodiag is not a firm of solicitors and does not provide legal advice. Reports are prepared solely on the basis of documents provided and the briefing given — Autodiag is not liable for the accuracy of information supplied by the instructing party. Opinions may be revised if further evidence emerges. The expert’s overriding duty is to the court, not to the instructing party. Autodiag holds motor trade, public liability, and employers’ liability insurance and operates as a fully VAT-registered sole trader (VAT No. GB286590361). Reports are prepared in compliance with CPR Part 35 and Practice Direction 35.