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Emissions System

Is your BMW throwing emissions related codes? While we're primarily a BMW performance parts house, we understand the importance of maintaining your emissions system to pass inspection in your area and keep your check engine light off. Pick up your emissions related parts from Turner Motorsport.

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Bosch Oxygen Sensor - Pre Catalytic Converter - E60, E63, E64
Bosch Oxygen Sensor - Pre Catalytic Converter - E60, E63, E64 ...
Bosch - Corporate Logo
T#:380992
Part#: 11787529980
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$ 132.72 USD
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$ 132.72 USD
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Length: 1050mm
Turner Oil Separator Kit - E53 X5 M62 4.4L 4.6L
Turner Oil Separator Kit - E53 X5 M62 4.4L 4.6L
Packaged by Turner - Corporate Logo
T#:555308
Part#: 11151705237KT1
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Sale - Save 11% $ 208.99

This product was last offered at the strikethrough price on
05-03-2026

$ 186.75 USD
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Sale - Save 11%
$ 208.99

This product was last offered at the strikethrough price on
05-03-2026

$ 186.75 USD
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The rubber hoses and oil separator can crack or become faulty, leading to vacuum leaks or oil leaks. This is caused by the stress the components are exposed to during heating and cooling cycles, especially if the vehicle is not brought up to operating temperature during driving in cold weather climates.

This kit includes the needed hoses, oil separator, and hardware.

Fits the following BMWs:
1999-2006 E53 BMW with M62 4.4L 4.6L

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Rein Crankcase Vent Hose - E34
Rein Crankcase Vent Hose - E34
Rein - Corporate Logo
T#:379791
Part#: 11151735150
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$ 5.23 USD
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$ 5.23 USD
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Part of the PCV system
Bosch Oxygen Sensor - Pre Catalytic Converter - E60, E63, E64
Bosch Oxygen Sensor - Pre Catalytic Converter - E60, E63, E64 ...
Bosch - Corporate Logo
T#:591854
Part#: 11787512983
Back Ordered
$ 104.99

This product was last offered at the strikethrough price on
05-07-2026

$ 73.99 USD
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$ 73.99 USD
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Length: 550mm
Oxygen Sensor - Upstream
Oxygen Sensor - Upstream
Bosch - Corporate Logo
T#:578915
Part#: 13037
Back Ordered
$ 205.99

This product was last offered at the strikethrough price on
05-07-2026

$ 183.25 USD
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$ 183.25 USD
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Crankcase Ventilation Hose
Crankcase Ventilation Hose
URO - Corporate Logo
T#:373197
Part#: 11151730507
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$ 10.99 USD
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$ 10.99 USD
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This tube runs from the valve cover breather connector to the reducer.
Oxygen Sensor - Grey - before catalytic converter - E60 550i E63 650i
Oxygen Sensor - Grey - before catalytic converter - E60 550i E63 650i...
Bosch - Corporate Logo
T#:14666
Part#: 11787540168
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$ 90.99 USD
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$ 90.99 USD
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This is the pre-cat oxygen sensor 550mm for cylinders 5-8 for BMW E60 550i and E63 650i. Bosch # 17093.

This item fits the following BMWs:
2005-2010 E60 BMW 550i
2005-2010 E63 BMW 650i
For cars with manual transmission.
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OEM Rein Crankcase Ventilation Hose - E53 X5 - (NO LONGER AVAILABLE)
OEM Rein Crankcase Ventilation Hose - E53 X5 - (NO LONGER AVAILABLE) ...
Rein - Corporate Logo
T#:6708
Part#: 11157556837
No longer available
No longer available
Over time, coolant hoses begin to get brittle and are susceptible to cracking and splitting. Replace your cracked or leaking coolant hose to prevent further leaks and potentially catastrophic failure.

This item fits the following BMWs:
BMW X Series - X5 4.4i, X5 4.6is

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URO Oil Separator Vent Hose - BMW E53 E52 M62 N62 S62
URO Oil Separator Vent Hose - BMW E53 E52 M62 N62 S62
URO - Corporate Logo
T#:373198
Part#: 11157556838
Ships in 1 Business Day
$ 13.99 USD
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$ 13.99 USD
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Replacement oil separator vent hose that runs from the separator
Crankcase Ventilation Tube
Crankcase Ventilation Tube
URO - Corporate Logo
T#:362021
Part#: 11157556837
Ships in 1 Business Day
$ 8.04 USD
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$ 8.04 USD
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This crankcase ventilation tube is found leading off the top outlet of the oil separator.
Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525xi/530xi (Early Production)
Crankcase Oil Separator and Vent Hose Kit - E90 325xi/330xi, E60 525x...
Packaged by Turner - Corporate Logo
T#:221962
Part#: TMS221962
Ships in 1 Business Day
$ 458.99 USD
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$ 458.99 USD
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The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:
  • 11617531423, Genuine BMW oil separator
  • 11617559530, vent hose
  • 11157522931, oil separator hose
  • 11157567801, return hose
  • 11157537701, extraction hose
  • 11617547242, intake manifold gaskets (set of 6)
    The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This kit fits the following BMWs:
    -10/2005 E90 BMW 325xi 330xi - Sedan
    -10/2005 E91 BMW 325xi - Wagon
    -10/2005 E60 BMW 525xi 530xi
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    Crankcase Oil Separator and Vent Hose Kit - E90 325i/330i, E60 525i/530i, E85 Z4 3.0i/3.0si
    Crankcase Oil Separator and Vent Hose Kit - E90 325i/330i, E60 525i/5...
    Packaged by Turner - Corporate Logo
    T#:338253
    Part#: 11617531423KIT
    Ships in 1 day
    Starting at $ 554.99 USD
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    Starting at $ 554.99 USD
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    The BMW N52 engine was deisgned with a crankcase vent system that relies on a heated oil separator valve to separate vapor from the liquid oil. Under ideal circumstances, the oil vapor would pass back into the intake and get burned up during normal combustion. The liquid oil would follow a path back down into the oil pan and be reused. This system is environmentally friendly but plagued with problems. The heating elements can fail or oil and carbon particles can block the oil separator valve. With no escape, the oil will continue to pool and collect in the valve cover or make its way into the combustion chamber leading to excessive oil consumption, blue smoke from the exhaust, idle and running issues. These issues are worse in colder climates where the freezing temperatures create an oil sludge condition that is impossible to clear. The plastic hoses can become brittle and crack which leads to vacuum leaks and oil leaks. Thankfully, the CCV is replaceable on the early N52 engines (2006 and some 2007 models) and should be inspected during a major service and any time the valve cover is off. Oil can also back up into the throttle body, which is easier to check than the oil separator itself. Later N52 engines do not have a serviceable oil vent as it is integrated into the valve cover and not a separate part.

    This is a kit containing the oil separator, the vent hoses, and the intake manifold gaskets that are done during a typical oil separator replacement. Complete kit includes:
  • 11617531423, Genuine BMW oil separator
  • 11617559530, vent hose
  • 11157522931, oil separator hose
  • 11157567801, return hose
  • 11157537701, extraction hose
  • 11617547242, intake manifold gaskets (set of 6)
    The intake manifold must be removed to access the oil separator so new profile gaskets are included. We also recommend (but not required) a new oil separator fitting on the intake manifold because it's one of the heated elements that vaporizes the oil as it enters the intake.

    The oil separator can be replaced on its own but for a complete service we also recommend replacing the oil separator hoses and cleaning the valve cover. Any valve cover or intake manifold work should include a new oil separator valve.

    This kit fits the following BMWs:
    2006-2011 E90 BMW 325i 325xi 330i 330xi - Sedan
    2006-2012 E91 BMW 325xi - Wagon
    2006-2007 E60 BMW 525i 525xi 530i 530xi
    2006-2008 E85 BMW Z4 3.0i Z4 3.0si
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    Nitrogen Oxide Sensor (NOx Sensor) - Rear - E90 335d, F25 28dX
    Nitrogen Oxide Sensor (NOx Sensor) - Rear - E90 335d, F25 28dX ...
    Vitesco Technologies - Corporate Logo
    T#:33446273
    Part#: 13628589845
    Back Ordered
    $ 394.99 USD
    Free Shipping on orders $49 and up
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    $ 394.99 USD
    Free Shipping on orders $49 and up
    Add to Wish List
    A degraded NOx Sensor can cause your vehicle to have a check engine light and poor performance. Restore your emissions system with a new NOx Sensor from Vitesco!
    Oxygen Sensor - Grey - before catalytic converter - E60 550i E63 650i
    Oxygen Sensor - Grey - before catalytic converter - E60 550i E63 650i...
    Denso - Corporate Logo
    T#:6366586
    Part#: 11787540168
    Back Ordered
    $ 150.99

    This product was last offered at the strikethrough price on
    05-08-2026

    $ 145.99 USD
    Free Shipping
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    $ 145.99 USD
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    This is the pre-cat oxygen sensor 550mm for cylinders 5-8 for BMW E60 550i and E63 650i. Bosch # 17093.

    This item fits the following BMWs:
    2005-2010 E60 BMW 550i
    2005-2010 E63 BMW 650i
    For cars with manual transmission.
    Show More Show Less

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