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BMW - M52 & M54 Crankcase Ventilation System DIY Series

As your M52 or M54-powered BMW ages and endures winter weather, your Crankcase Ventilation System might experience some negative effects. If you don’t let your engine warm up to operating temperature before a drive, then the condensation in your CCV can cause cracking and failures that result in oil leaks. Keep your M5X engine leak-free and functioning as it should by refreshing your CCV system with help from our DIY videos and inclusive kits!


Watch our DIY Videos

Fits: BMW M52 & M54 Engines
E39 525i, 528i, 530i
E46 323Ci, 323i, 325Ci, 325i
E53 X5 M54 3.0L
E60 525i, 530i
E83 X3
Z3 2.5i, 2.8i, 3.0i
Z4 2.5i, 3.0i

‹ ›
ES#260025 - e46m5411_61 - Oil Separator Kit - Level 1 - The most commonly replaced components in your breather system - Assembled By ECS - BMW
Oil Separator Kit - Level 1
The most commonly replaced components in your breather system
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 260025
Mfg#: E46M5411_61

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Availability:
Ships on Jul 6, 2026
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On SALE Save 24%
$123.99

This product was last offered at the strikethrough price on
05-02-2026

$93.71 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#3108206 - 012178ECS01KT - Oil Separator Hose Kit - Assembled By ECS - BMW
Oil Separator Hose Kit
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Brand: Assembled By ECS - Corporate Logo
ES#: 3108206
Mfg#: 012178ECS01KT

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Availability:
Ships on Jul 6, 2026
Auto Notify
On SALE Save 25%
$143.99

This product was last offered at the strikethrough price on
05-02-2026

$108.71 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#2785230 - 11617504535K - Crankcase Ventilation Hose Kit - Hose kit to perform a CCV refresh - Rein - BMW
Crankcase Ventilation Hose Kit
Hose kit to perform a CCV refresh
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Brand: Rein - Corporate Logo
ES#: 2785230
Mfg#: 11617504535K

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Availability:
Ships in 1 Business Day
$79.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#3046177 - 012178ECS01 - Aluminum Vacuum Hose F-Connector - No more brittle plastic vacuum connectors - end vacuum leaks once and for all! - ECS - BMW
Aluminum Vacuum Hose F-Connector
No more brittle plastic vacuum connectors - end vacuum leaks once and for all!
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand: ECS - Corporate Logo
ES#: 3046177
Mfg#: 012178ECS01

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Availability:
In Stock
On SALE Save 35%
$52.99

This product was last offered at the strikethrough price on
05-02-2026

$34.44 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#25780 - 11617533400 - "Cold Climate" Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - Genuine BMW - BMW
"Cold Climate" Crankcase Pressure Regulator Valve
Commonly referred to as the "oil separator" or PCV
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Brand: Genuine BMW - Corporate Logo
ES#: 25780
Mfg#: 11617533400

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Availability:
Ships in 2 Business Days
3% off MSRP

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.


$119.99
$116.99 USD
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This product is lifetime replacement eligible Lifetime Replacement
ES#2867372 - 11617533400 - "Cold Climate" Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - Febi - BMW
"Cold Climate" Crankcase Pressure Regulator Valve
Commonly referred to as the "oil separator" or PCV
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Brand: Febi - Corporate Logo
ES#: 2867372
Mfg#: 11617533400

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Availability:
Ships in 1 Business Day
$61.99 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2681698 - 11617533400 - "Cold Climate" Crankcase Pressure Regulator Valve - Commonly referred to as the "oil separator" or PCV - URO - BMW
"Cold Climate" Crankcase Pressure Regulator Valve
Commonly referred to as the "oil separator" or PCV
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!
Brand: URO - Corporate Logo
ES#: 2681698
Mfg#: 11617533400

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Availability:
Ships in 1 Business Day
$40.99 USD
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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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Manufacturer names and/or part numbers are used only for identification purposes.

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