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E46 M54 cooling system overhaul cost
M54 (2.5L / 3.0L inline-6), also M52TU
Last updated
Price summary
| BMW dealer | No price yet. |
|---|---|
| Independent shop | $1,173–$1,316 What owners paid: the middle of 4 sourced prices (full spread $1,090–$1,520) |
| All shops | $1,200–$1,300 The middle of 5 sourced prices |
What owners paid (middle half) One owner price
Thin data: fewer than 3 sourced dealer prices so far, so no range is shown there yet. Share what you paid to help fill it in.
Before tax and shop fees. Prices vary by region, parts brand and what's included.
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Graded against the independent sourced range.
What owners paid
Shared on this site 0
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Submitted by owners through this site and reviewed before publishing. Shown separately from the public posts below.
From public posts 7
| Price | Shop | Vehicle / scope | Location | Year | Source |
|---|---|---|---|---|---|
| $1,520 | Independent quote |
2005 325xi Water pump, fan clutch and thermostat at a local shop |
— | ~2024 | r/e46 |
| $1,300 | Shop type n/a paid |
E46 Cooling system overhaul |
— | ~2024 | r/e46 |
| $1,375 | Independent quote |
2004 M3 (S54) Cooling overhaul: $475 parts plus $900 labor · not used in range: M3 (S54 engine) |
— | ~2023 | r/e46 |
| $2,250 | Dealer quote |
2004 M3 (S54) Cooling overhaul · not used in range: M3 (S54 engine) |
— | ~2023 | r/e46 |
| $1,248 1247.63 |
Independent quote |
E46 Radiator, water pump, thermostat, hoses and expansion tank, including fees |
— | ~2009 | BimmerFest |
| $1,200 | Independent quote |
E46 Cooling system overhaul at an independent shop (approximate figure) |
— | ~2009 | BimmerFest |
| $1,090 | Independent quote |
E46 Cooling system overhaul at an independent shop |
— | ~2009 | BimmerFest |
Grey rows are shown for context and left out of the range. Years are approximate (date of the post). The range is the middle half of full-job USD prices for each shop type, published once there are at least 3; labor-only, customer-supplied-parts, warranty cost-share and bundled jobs are listed but left out.
Symptoms
- Coolant temperature warning or the gauge needle climbing past the middle
- Low coolant level warning and a sweet coolant smell
- Coolant drips or white crust at the expansion tank, radiator necks or hoses
- Squeal or wobble from the water pump pulley
- Cracked plastic radiator neck or expansion tank found at service
Which cars are affected
1999–2006 E46 323i/328i (M52TU) and 325i/325xi/325Ci/330i/330xi/330Ci (M54). The overhaul usually covers the water pump, thermostat, expansion tank, radiator and the main hoses.
Quotes vary mostly by scope. Some cover only the water pump and thermostat, others add the radiator, expansion tank, hoses and fan clutch. Compare quotes line by line. The M54 cooling system is mostly plastic, so many owners replace the parts together.
Indie shops near you
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Related repairs
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M54, also M52TUE46 M54 valve cover gasket replacement
M54, also M52TUAll repair prices → · Dealer vs independent prices for every job
Before you pay, check the VIN for recalls. Some failures are covered by a safety recall or a BMW warranty extension.