Roof drain blockages and interior water leaks

Tags: #water-ingress · #sunroof · #price

Reference guides shared by the community. Two Drive2 articles are repeatedly referenced for roof/sunroof drain problems: (1) a general roof drain inspection and maintenance guide — https://www.drive2.ru/l/534663643480982384/ — covering preventive inspection and cleaning of the roof drainage system to prevent interior water accumulation; (2) a second post specifically about water appearing under the passenger-side carpet — https://www.drive2.ru/l/684423724253850875/ — discussing drainage paths and fixes for that particular symptom.¹²³⁴⁵⁶

Known design issue on pre-facelift ("dorest") cars. Pre-facelift X80s reportedly have an issue with the corner fittings of the sunroof drain tubes being plastic (rather than a more durable material) — this is flagged by the community as a specific weak point worth inspecting proactively, since the same failure pattern recurs across multiple owner reports.³⁴⁵⁶

Roof drain cleaning service cost — significant regional spread (2026-04, Saint Petersburg). Reported quotes for roof/sunroof drain cleaning in Saint Petersburg ranged from 6,500 to 19,000 RUB, with 19,000 RUB being the more commonly quoted price and 6,500 RUB flagged by the group as notably (suspiciously) cheap for that city. Recommendation: get quotes from multiple local services, or attempt a DIY approach with a drain-clearing brush tool, before committing to an expensive service.^7891011

Full water-leak repair case — Saint Petersburg, 2Dservice (2026-04/05). One owner had a persistent water leak (water pooling under the interior carpet) diagnosed and fixed at 2Dservice, Vyborgskoye shosse, building 212V, Pargolovo settlement, Saint Petersburg (contact: +7 (981) 336-00-75; https://yandex.ru/navi/org/2dservice/197109635479). The job — drain clearing, removal of interior plastic panels, and sealant application — took 4 hours and cost 5,000 RUB (RU market, April 2026); the technician noted the source of the leak was difficult to locate initially, consistent with the "hidden drain path" nature of this fault class. A second community member commented that a competent DIYer could likely do the same job themselves in about an hour with the right approach.^12131415

Second corroborating cost report — same shop, same price (2026-07, Saint Petersburg). A separate report of the identical repair — a water leak under the interior carpets — describes the same fix (removing interior trim/plastic, cleaning the drain, applying sealant) performed by the same shop, "2d service," in Saint Petersburg, for 5,000 RUB (~USD 50) (RU market, July 2026). This matches the earlier April/May 2026 case's price exactly, reinforcing 5,000 RUB (RU market, July 2026) as the going rate at this shop for this specific repair.¹⁶

Water pooled under the carpet — check the cowl drains first. One member dried out a car with water standing under the carpet. Another noted that on the pre-restyle X80 water finds its way in through all the body seams, sometimes even through the engine bulkhead, and advised checking the drains under the cowl (жабо, the plastic panel below the windshield) first. See also Water leaks — fender and cabin ingress.¹⁷¹⁸

Media

Service quote screenshot showing 6,500 RUB price, flagged as notably low for Saint Petersburg

Second service quote screenshot showing comparison pricing

Third service quote screenshot

Video of the drain-clearing procedure at 2Dservice with panels removed, confirming the work performed

Related pages

• Water leaks — sunroof and roof drains
• Water leaks — footwell diagnosis and A/C drain
• Cabin water leaks — causes and fixes
• Water leaks — trunk and rear door
• Water leaks — door seals and body sealing

Sources

This page is compiled from 18 community messages. Every fact carries a numbered reference to its original author and message.

Last updated: 2026-10-29