Check a Tayron Panoramic Roof for Leaks and Drain Faults

Decision boundary

First establish whether the panoramic roof is factory-fitted for the VIN, then define a controlled water, trim, drain and cabin inspection without damaging the vehicle.

Continue the evidence route: Carry moisture or body-repair evidence into the accident and flood assessment, preserve the full condition boundary in the used Tayron inspection, and record destination repairs in the landed-cost file.

Evidence register

Keep roof operation video, glass and seal images, drain observations, moisture readings, headlining and pillar evidence, carpet-layer checks, module scans and repair invoices.

Where the risk sits

High-pressure testing can create false leaks, while blocked drains, body repair or prior trim removal can send water into wiring and low cavities without an obvious roof stain.

Candidate scenario

A repaired drain with dated drying and electrical evidence may be manageable; recurring odour, wet underlay or corrosion near modules requires a wider flood and repair assessment.

Map water from high point to low point

Inspect roof edges, windscreen work, rails and antenna area before assuming the sunroof is responsible. Follow stains through headlining, pillars and trim, then inspect carpet underlay, seat mounts, rear cavities and electrical connectors. Record whether evidence is fresh, historic, cleaned or repaired and avoid removing safety-related trim without the correct procedure.

Test without creating the defect

Use low-volume controlled water in the sequence allowed by the correct service information. A pressure washer can overwhelm seals and give a false diagnosis. Record drain flow by corner, outlet condition and cabin observation. Never use wire or compressed air blindly where it could detach a hose, damage a valve or redirect debris into the vehicle.

Close both leak and consequence

Repairing a blocked path does not prove that wet insulation, corrosion or module damage has been resolved. Document drying, removed trim, connector condition and repeat scans where relevant. A recurrence, widespread lower-cabin evidence or unclear water depth should keep the vehicle on hold and reopen the broader flood assessment.

Protect the evidence through handover

Photograph roof, headlining, pillar edges and lower cabin after the final controlled retest and before loading. State whether trim was removed, what remained inaccessible and whether the vehicle must stay under cover. Repeat the moisture and function check after arrival so a new transport leak is not confused with the condition accepted from the seller.

Version-specific control

Condition must be observed on one vehicle. Preserve cold and hot results, module scans, dated media and service evidence. Classify each finding by consequence and evidence rather than by cosmetic impression.

Export and ownership consequence

A discount can compensate for an understood repair; it cannot prove legal identity, structural safety or destination eligibility. Record who must confirm each open field, what document or test closes it, and when that evidence expires.

Buyer hold points

Mark roof identity, glass and seals, drain paths before commercial acceptance. Keep trim and cavities, electrical evidence, controlled retest visible until the responsible reviewer closes them. A changed VIN, beneficiary, delivery point or accepted exception reopens the affected gate.

Arrival handover

Freeze odometer, warnings, keys, accessories, body condition and unresolved actions before loading. Compare arrival condition with the loading file before cleaning or repair, and preserve the record for claims and workshop handover.