GROUNDWORK — Check door drain openings after washing Task: mazda-door-drains | Content version 2.0.0 Source page: https://csl-12-auto-repair.pages.dev/tasks/mazda-door-drains/ MODEL / APPLICABILITY [{"modelId":"mazda3-2017-us","market":"US","year":2017,"engine":"SKYACTIV-G 2.0 / 2.5 gasoline","configurations":["all","4-door","5-door","type-b-audio"]}] EXCLUSIONS Other model years and markets; imported Axela or diesel models; modified or aftermarket components with a different procedure. PREPARE [ ] Park in a safe place away from traffic. Work with the vehicle stationary, parking brake set and ignition off unless a step explicitly calls for a parked functional check. [ ] Can the lower door / rocker openings be reached while standing, with no trim removal or vehicle lifting? [ ] Keep children and pets away from tools, fluids and coin cells. Never enter underneath the vehicle. [ ] Good lighting [ ] Soft cloth [ ] Clean lukewarm or cold water, used only on accessible exterior areas OBSERVE & RECORD Observation date: __________ Vehicle / equipment confirmed: __________ Record the opening and surface debris before/after; avoid treating an unidentified body gap as a drain. Positively identified accessible openings: __________ Visible surface debris before cleaning: __________ Visible opening after cleaning: __________ Trapped water, rust or inaccessible area: __________ Before care: __________ STEPS 1. [ ] Locate the accessible drain openings at lower door edges / rocker panels using the manual’s appearance-care guidance; do not assume every gap is a drain. https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 2. [ ] Look for dirt at the visible openings without pushing tools deep into the door or removing trim. https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 3. [ ] Remove loose surface dirt gently and use water only where accessible as part of ordinary exterior cleaning. https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 4. [ ] Recheck that visible openings are clear. Mazda notes that clogged drain holes can trap water and cause rust. https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 5. [ ] If water remains trapped, holes cannot be identified or rust is present, ask for body inspection; do not drill or enlarge an opening. https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 6. [ ] Record the opening and surface debris before/after; avoid treating an unidentified body gap as a drain. https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 DECISION CHECKS Can the lower door / rocker openings be reached while standing, with no trim removal or vehicle lifting? Yes — ready for this check → Continue with the steps, stopping if the real component differs from the manual. Not yet / not sure → Preparation saved. Return when the condition is confirmed; leave the vehicle untouched. Standing water, rust damage, inaccessible holes or an unknown opening → Trapped water, corrosion or uncertain opening: arrange body inspection. What was visible at the accessible drain openings? Surface debris removed and visible openings clear → Are the identified openings visibly clear with no remaining trapped water or rust concern? Trapped water, corrosion or uncertain opening: arrange body inspection. → Trapped water, corrosion or uncertain opening: arrange body inspection. I have only prepared the plan → Plan prepared; no physical maintenance result recorded. Are the identified openings visibly clear with no remaining trapped water or rust concern? Identified openings clear; no trapped-water evidence → Surface debris removed and visible openings clear The observation or repeat check is still incomplete → Plan prepared; no physical maintenance result recorded. Water remains trapped, rust present or opening unidentified → Trapped water, corrosion or uncertain opening: arrange body inspection. RECHECK After the next wash, do the same accessible openings remain clear without trapped water or corrosion evidence? After care: __________ Retest: not checked / improved / unchanged / worse If an earlier condition changes, reassess the later checks and result. RESULT CHECK What was visible at the accessible drain openings? Surface debris removed and visible openings clear Record only the result you actually observed. A saved web checklist is not confirmation that a vehicle has been repaired. Are the identified openings visibly clear with no remaining trapped water or rust concern? After the next wash, do the same accessible openings remain clear without trapped water or corrosion evidence? STOP CONDITIONS Standing water, rust damage, inaccessible holes or an unknown opening Trapped water, corrosion or uncertain opening: arrange body inspection. A part, label, connector or fastener differs from the cited manual; access requires raising the vehicle; you cannot identify the correct component. SERVICE HANDOFF Take the recorded observations, their dates and any actual work history to the service provider. Trapped water, corrosion or uncertain opening: arrange body inspection. Notes: __________ SOURCES 2017 Mazda3 Owner’s Manual — Door and Rocker Drain Holes, printed pp.6-68–6-70 https://www.mazdausa.com/siteassets/global-resources/vehicle-resources/owner-manuals/2017/mazda3/2017-mazda3-owners-manual.pdf#page=481 | PDF page 481 Source checked 2026-10-04 Copyright retained by manufacturer; factual reference only. Original wording and schematic; no OEM images or manual redistribution. This blank plan records no completed maintenance or verified repair.