18044-fixing-smart-roadster-leaks¶

1 excerpts.

Forum thread: Fixing Smart Roadster Leaks -¶

smartmaniacs.co.uk/forum/servicing-technical-guides/general-servicing/18044-fixing-smart-roadster-leaks · p. 1 · Applies to: 451

smartManiacs Source: smartmaniacs.co.uk Topic: water leaks and sealing Models discussed: 451 Solution status: unclear

Problem: Smart Roadster convertibles experience multiple types of water leaks including front bulkhead leaks, seal leaks around glass and body, mirror wind noise, mirror water leaks, speaker water ingress, and windscreen leaks.

Solution: Multiple DIY solutions are provided: (1) Front bulkhead: apply waterproof silicon sealant to joins around metal tridon in front boot. (2) Seal leaks: apply silicon grease to seal surfaces to make them impermeable; alternatively use Halfords nylon/rubber lubricant spray to protect seals from aging. (3) Mirror wind noise: insert foam sponge material behind triangular mirror cover to reduce gap. (4) Mirror water leaks: apply thick axle grease around gap in mirror control handle hole. (5) Speaker leaks: place polybag behind/above speaker and secure with duct tape to channel water to door drain hole. (6) Windscreen leaks: use liquid seal product in squeeze bottle on suspect areas.

Key facts: - Early Roadsters had front bulkhead leaks resolved in later models; earlier cars may need silicon sealant applied to tridon joins - Three versions of seals exist with different material properties: 05 seals are smooth/softer, 04 seals are rough/harder, 03 seals are hard/smooth - Silicon grease (not petroleum products) applied to seals prevents water seepage and protects from aging - Multiple leak sources common in convertibles: bulkhead, seals, mirrors, speakers, and windscreen; each requires different approach - Thread recommends warranty service for in-warranty vehicles but provides DIY solutions using common materials (sealant, grease, foam, duct tape)