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B58 heat management module (thermostat) replacement: what owners actually paid
B58 (3.0L turbo 6-cyl)
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Fair-price range (from sourced prices)
How this is derived: the middle 50% (25th–75th percentile) of the USD prices in the table below for that shop type, using full-job totals only. Labor-only, customer-supplied-parts, warranty cost-share, bundled-extra-work and non-USD prices are shown but excluded. A range is only published with at least 3 usable prices. Scope differs between quotes, so read the notes.
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Symptoms
- Coolant temperature warning or engine running hot
- Engine slow to warm up, poor heater output
- Check-engine light with thermostat / coolant temperature faults
- Coolant leak from the module at the front of the engine
- Low coolant warning
Which cars are affected
G30 540i / 540i xDrive (2017–2023). The same module is used on many B58 cars (340i, 440i, M340i, X3/X4 M40i, X5/X6 40i, 740i, 840i) with different labor.
G30 · 5 Series 2017–2023 F30 · 3 Series 2012–2019 F32 · 4 Series 2014–2020 G20 · 3 Series 2019–present G01 · X3 2018–2024 G05 · X5 2019–present
BMW calls the B58's thermostat the heat management module: an electronically controlled thermostat and coolant valve in one housing. Genuine part on the G30 540i: 11537642854 for 2017–2019 (B58A engine) or 11538642559 for 2020–2023 (later B58). Shops often replace it together with the oil filter housing, hoses or water pump, which raises the bill.
→ 11537642854 fitment: 2017–2019 G30 540i (BMW Parts Deal)
→ 11538642559 fitment: 2020–2023 G30 540i, X5 40i and more (BMW Parts Deal)
→ BimmerWorld: B58A heat module replaces a traditional thermostat
→ Bimmerpost G30: 2018 540i low coolant, radiator, hose and thermostat quote
Service bulletins
- SIB 11 10 15 Thermostat check engine light Thermostat check engine light on BMW E90/E92/E93/F30 and other models (2012–2018); BMW released a software update. Service bulletin · Mar 2017
BMW service bulletins and warranty extensions filed with NHTSA. A bulletin isn't a recall and doesn't mean your car has the problem. All service bulletins →
Sourced price points (1)
| Price | Shop | Vehicle / scope | Location | Year | Source |
|---|---|---|---|---|---|
| $2,300 | Independent quote |
2018 540i (G30), 60k mi Radiator, hose and thermostat (heat management module) · not used in range: bundled with a radiator |
— | ~2023 | Bimmerpost G30 |
Greyed rows are shown for context and excluded from the range. Years are approximate (date of the post).
Parts cross-reference
Genuine BMW part numbers cited in our parts-price sources for this job, checked against a public BMW parts catalog on 2026-10-17. "Supersedes" lists older numbers this part replaced. Confirm fitment for your VIN before ordering; numbers can differ by production date and drivetrain.
| BMW part number | Part | Supersedes | Search it at |
|---|---|---|---|
| 11 53 8 642 559 11538642559 | HEAT MANAGEMENT MODULE | 11 53 8 843 406 | ECS Tuning · Turner · Pelican · FCP Euro |
| 11 53 7 642 854 11537642854 | Heat Management Module | none listed | ECS Tuning · Turner · Pelican · FCP Euro |
Plain search links; we don't earn a commission on them. Search all part numbers →
Related repairs
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B58 and B46/B48; the same valve is listed for the S58Indie est. $63–$173 Dealer est. $195–$285
ZF 8-speed automatic transmission fluid and pan/filter service
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Before you pay: check your VIN for recalls
Some failures are covered by a safety recall or a warranty extension. Our free recall check lists NHTSA recalls for your car's model and year.
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