AutoDefect Evidence & Source Library: BMW HVAC, NHTSA, EPA, SAE & Owner Records
AUTODEFECT.ORG BMW HVAC EVAPORATOR REGISTRY · INDEPENDENT
MY RECORD REPORT A FAILURE
Evidence before accusation
Source classes and case evidence levels are tracked separately. Every material claim states what it does — and does not — establish.
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Symptom ≠ diagnosis
Uneven vents, hissing or temporary post-recharge improvement are diagnostic clues — not proof the evaporator is the source.
READ THE DIAGNOSIS GUIDE →
Three cost layers, never blended
External benchmarks, documented estimates and completed invoices answer different questions — the registry keeps them separate.
SEE COST INTELLIGENCE →
Public record, plainly labeled
Recalls, settlements and complaints are different kinds of records. Each entry links its primary source and states its scope.
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Statistics describe submitted records
They do not establish manufacturer-wide incidence or failure rates. Read how records are reviewed before publication.
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Prototype — search binds to Supabase full-text in the production build (see handoff-v4).
POPULAR SEARCHES
X5 G05 Evaporator replacement cost Passenger side warm 64119496922 BMW recalls Class action settlements R-1234yf leak
Desk covered with labeled primary-source documents under review
FLAGSHIP — SOURCE INFRASTRUCTURE

Evidence & Source Library

AutoDefect does not treat every citation as equivalent. This library identifies the source, its authority, its applicability, what it establishes, and what it does not establish.

EVIDENCE CENTEREDITORIAL STANDARDS

LIMITATION — Green and red labels are supplemented by the words ESTABLISHES and DOES NOT ESTABLISH — meaning never depends on color alone.

Published: August 8, 2026Last reviewed: August 8, 2026Compiled by: AutoDefect.org Registry EditorSources last checked: August 8, 2026CorrectionsManufacturer right of reply
THE CORE SOURCE CARDS

Thirteen sources, classified

PRIMARY — GOVERNMENT / REGULATORPRIMARY — TECHNICAL STANDARDMANUFACTURER — OFFICIALMANUFACTURER COMM. — ARCHIVED / MIRRORREGISTRY — DOCUMENT-SUPPORTEDSECONDARY — MARKET / PARTS DATACOMMUNITY — OWNER REPORT
PRIMARY — GOVERNMENT / REGULATOR
NHTSA Datasets and APIs
NHTSA · Ongoing · Accessed August 8, 2026
APPLICABILITY — All U.S. market vehicles
ESTABLISHES — NHTSA provides public complaints, investigations, recalls and manufacturer-communications data and API infrastructure; complaint data are used with other information to identify potential safety issues and trends.
DOES NOT ESTABLISH — That every owner complaint is verified; that any particular complaint establishes a safety defect; that the absence of a keyword match means no relevant record exists.
NHTSA.GOV ↗
PRIMARY — GOVERNMENT / REGULATOR
NHTSA Manufacturer Communications
NHTSA · Ongoing · Accessed August 8, 2026
APPLICABILITY — Manufacturer notices, bulletins, warranty/policy extensions
ESTABLISHES — NHTSA receives manufacturer notices, bulletins and related communications under federal reporting requirements and makes public manufacturer communications available.
DOES NOT ESTABLISH — That a communication is a recall; that every communication applies to every BMW model.
NHTSA.GOV ↗
PRIMARY — GOVERNMENT / REGULATOR
NHTSA — Report a Safety Problem
NHTSA · Ongoing · Accessed August 8, 2026
APPLICABILITY — Consumer safety reporting
ESTABLISHES — The official federal consumer channel for reporting a potential vehicle safety problem.
DOES NOT ESTABLISH — That every expensive repair belongs in NHTSA’s safety complaint system.
NHTSA.GOV ↗
PRIMARY — GOVERNMENT / REGULATOR
EPA — Acceptable Refrigerants and Their Impacts
U.S. EPA · Current · Accessed August 8, 2026
APPLICABILITY — Motor-vehicle A/C refrigerants
ESTABLISHES — EPA’s acceptability status and regulatory framework for HFO-1234yf and other MVAC refrigerants.
DOES NOT ESTABLISH — That R-1234yf causes BMW evaporator failures.
EPA.GOV ↗
PRIMARY — GOVERNMENT / REGULATOR
EPA — Servicing Motor Vehicle Air Conditioners
U.S. EPA · Current · Accessed August 8, 2026
APPLICABILITY — MVAC servicing and refrigerant handling
ESTABLISHES — The federal MVAC servicing framework and refrigerant-handling requirements (CAA §609).
DOES NOT ESTABLISH — A BMW-specific diagnostic protocol.
EPA.GOV ↗
PRIMARY — TECHNICAL STANDARD
SAE J2842_202606
SAE International · Revised 2026-06 · Accessed August 8, 2026
APPLICABILITY — OEM mobile A/C evaporators and service replacements
ESTABLISHES — The current SAE framework for OEM mobile A/C evaporator design criteria and certification, including service replacements.
DOES NOT ESTABLISH — That a particular BMW evaporator is noncompliant; why any reported BMW evaporator failed.
SAE MOBILUS ↗
MANUFACTURER — OFFICIAL
BMW USA Customer Relations / Contact
BMW of North America · Current · Accessed August 8, 2026
APPLICABILITY — Owner escalation channel
ESTABLISHES — BMW’s official customer-relations contact channel.
DOES NOT ESTABLISH — A particular goodwill policy or guaranteed outcome.
BMWUSA.COM ↗
MANUFACTURER — OFFICIAL
BMW Digital Owner’s Manuals
BMW of North America · Current · Accessed August 8, 2026
APPLICABILITY — VIN-based owner documentation
ESTABLISHES — Official, VIN-specific owner’s manual content for BMW vehicles.
DOES NOT ESTABLISH — Service procedures or defect determinations.
BMWUSA.COM ↗
MANUFACTURER — OFFICIAL
BMW Official Recall Lookup
BMW of North America · Current · Accessed August 8, 2026
APPLICABILITY — VIN-specific recall status
ESTABLISHES — BMW provides VIN-specific safety and emission recall information.
DOES NOT ESTABLISH — That absence of an open recall means a non-safety component cannot fail.
BMWUSA.COM ↗
SECONDARY — MARKET / PARTS DATA
RepairPal — BMW X5 Evaporator Replacement Cost
RepairPal · Accessed 2026 · Accessed August 8, 2026
APPLICABILITY — Commercial cost benchmark
ESTABLISHES — RepairPal’s current commercial estimate range (approximately $2,515–$3,345) and methodology as presented by RepairPal.
DOES NOT ESTABLISH — A BMW dealer price; an AutoDefect average; what an individual owner will pay.
REPAIRPAL.COM ↗
SECONDARY — MARKET / PARTS DATA
BMWPartsDeal — 64119496922
BMWPartsDeal (third-party catalog) · Accessed 2026 · Accessed August 8, 2026
APPLICABILITY — G05 X5 evaporator catalog listing
ESTABLISHES — Third-party catalog-listed fitment for specified 2019–2020 G05 X5 variants and catalog supersession to 64115B3A5E0.
DOES NOT ESTABLISH — BMW’s engineering rationale for supersession; defectiveness of the earlier part; VIN-specific fitment without verification.
BMWPARTSDEAL.COM ↗
COMMUNITY — OWNER REPORT
Bimmerpost — G05 uneven-temperature thread
Bimmerpost forum members · Ongoing thread · Accessed August 8, 2026
APPLICABILITY — G05 owner discussion
ESTABLISHES — Owners publicly discussed uneven temperature symptoms and different diagnoses.
DOES NOT ESTABLISH — Prevalence; manufacturer knowledge; causation; fleet-wide defect.
G05.BIMMERPOST.COM ↗
COMMUNITY — OWNER REPORT
Bimmerpost — G30 A/C thread
Bimmerpost forum members · Ongoing thread · Accessed August 8, 2026
APPLICABILITY — G30 owner report
ESTABLISHES — An owner report discussing passenger-side cooling loss and a subsequent evaporator diagnosis.
DOES NOT ESTABLISH — Prevalence; manufacturer knowledge; causation; fleet-wide defect.
G30.BIMMERPOST.COM ↗
MANUFACTURER COMM. — ARCHIVED / MIRROR
SIB 64 08 21 — third-party mirror
BMW communication via OEMDTC mirror · SIB dated 2021 · Accessed August 8, 2026
APPLICABILITY — Specified N63/S63/N74 applications
ESTABLISHES — The reproduced BMW service communication describes an alternative A/C cooling-loss mechanism (compressor control valve/debris) on specified applications.
DOES NOT ESTABLISH — A G05 evaporator-core defect.
OEMDTC.COM (MIRROR) ↗
USING THE LIBRARY

Source class is not case evidence

A source class describes where information comes from — government, standard, manufacturer, registry, market or community. A case evidence level (A–E) describes how well an individual registry case is documented. A government page can contain an unverified owner allegation; a registry document can verify a dealership’s written diagnosis without proving the engineering root cause.

METHODOLOGY — LEVELS A–E →

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Primary documents outrank mirrors; mirrors outrank memory. Send links or documents for classification.

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