What are important facts to be aware of for the proper functioning of the catalytic converter on BMW Z4?

A forever reliable and simple equipment is a catalytic converter, which does not need any maintenance at all. Nonetheless, there are some crucial factors that one must know in order to keep it functioning well in its entire service life span. The first thing you should do is avoiding the use of leaded gasoline since this will coat the precious metals in the catalytic converter reducing its efficiency and ultimately leading to its demise. Secondly, ignition and fuel system maintenance has to be done as per manufacture's recommendation. When engine develops misfire, driver is advised not to drive until problem will be solved. Also avoid push starting or towing because it could result in a raw fuel being dumped into the catalyst that can overheat when engine starts up. Never turn off the ignition at high engine speeds too.This may contain materials harmful for converters; therefore no fuel or oil additives should be used. In case if your engine burns oil leaving blue smoke trail behind car you should stop using it anymore. Also remember that car should not be left near dry undergrowth, on long grass or on piles of dead leaves because catalytic converter works under extremely high temperatures after long distance run.Remember that catalytic converters are delicate and must never be struck with tools during servicing work.Sometimes an exhaust odour can smell slightly sulphurous but this is common and will cease after a few thousand miles have been attained by the vehicle.In conclusion, a properly maintained and driven car should have a life of 50-100000 miles from its cat converter.A nonworking cat converter must always be replaced.

Genuine BMW Z4 Catalytic Converter

Cat. Converter

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18 Catalytic Converters found

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BMW Z4 EXCH CATALYTIC CONVERTER CLO
Part Number: 18328482648
$1423.90 MSRP: $1813.61
You Save: $389.71 (22%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: EXCH CATALYTIC CONVERTER CLO; Catalytic Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 Exchange Catalytic Converter Close To Engine
Part Number: 18328627722
$1324.29 MSRP: $1727.23
You Save: $402.94 (24%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Exchange Catalytic Converter Close To Engine; Catalytic Converter
- Replaces: 18-32-7-645-667
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2016 BMW Z4 | sDrive28i(E89)
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BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407518675
$2613.82 MSRP: $3361.62
You Save: $747.80 (23%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2005 BMW Z4 | 2.5i(E85)
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BMW Z4 RP-CATALYTIC CONVERTER
Part Number: 18307934416
$1569.31 MSRP: $1994.95
You Save: $425.64 (22%)
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Product Specifications
- Other Name: RP-CATALYTIC CONVERTER; Front Muffler, Muffler
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2019-2025 BMW Z4 | 4 Cyl 2.0 L GAS, sDrive30i(G29)
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BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407586688
$1292.07 MSRP: $1632.21
You Save: $340.14 (21%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2011 BMW Z4 | sDrive30i(E89)
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BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407545311
$1505.24 MSRP: $2027.69
You Save: $522.45 (26%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2006-2008 BMW Z4 | Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
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BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407518676
$2384.24 MSRP: $3156.89
You Save: $772.65 (25%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2005 BMW Z4 | 2.5i(E85)
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BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407518674
$1181.73 MSRP: $1534.33
You Save: $352.60 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2005 BMW Z4 | 3.0i(E85)
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BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407518673
$1181.73 MSRP: $1534.33
You Save: $352.60 (23%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold, Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2003-2005 BMW Z4 | 3.0i(E85)
View related parts
BMW Z4 EXCH CATALYTIC CONVERTER CLO
Part Number: 18328682788
$1493.19 MSRP: $1904.26
You Save: $411.07 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: EXCH CATALYTIC CONVERTER CLO; Catalytic Converter, Converter, Converter & Pipe
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2020-2025 BMW Z4 | 6 Cyl 3.0 L GAS, M40i(G29)
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BMW Z4 Catalytic Converter
Part Number: 18307599484
$1402.41 MSRP: $1781.53
You Save: $379.12 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Exhaust Pipe Catalyst Cylinder; Converter & Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2011 BMW Z4 | sDrive30i(E89)
View related parts
BMW Z4 Catalytic Converter
Part Number: 18307599483
$1402.41 MSRP: $1781.53
You Save: $379.12 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Exhaust Pipe Catalyst Cylinder; Converter & Pipe, Exhaust Pipe
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2011 BMW Z4 | sDrive30i(E89)
View related parts
BMW Z4 Exchange Catalytic Converter Close To Engine
Part Number: 18307647041
$1426.93 MSRP: $1813.61
You Save: $386.68 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Catalytic Converter Close To Engine; Catalytic Converter, Converter, Manifold
- Replaces: 18-30-7-586-741
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive35i(E89), sDrive35is(E89)
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BMW Z4 Exchange Catalytic Converter Close To Engine
Part Number: 18307647040
$1426.93 MSRP: $1813.61
You Save: $386.68 (22%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Catalytic Converter Close To Engine; Catalytic Converter, Converter, Manifold
- Replaces: 18-30-7-586-733
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2016 BMW Z4 | sDrive35i(E89), sDrive35is(E89)
View related parts
BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407586689
$1292.07 MSRP: $1632.21
You Save: $340.14 (21%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2009-2011 BMW Z4 | sDrive30i(E89)
View related parts
BMW Z4 Exchange Catalytic Converter Close To Engine
Part Number: 18327645667
$1324.29 MSRP: $1727.23
You Save: $402.94 (24%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Exchange Catalytic Converter Close To Engine
- Replaced by: 18328627722
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2012-2016 BMW Z4 | sDrive28i(E89)
View related parts
BMW Z4 Catalytic Converter
Part Number: 18307562227
$1866.36 MSRP: $2516.88
You Save: $650.52 (26%)
Product Specifications
- Other Name: Exchange Exhaust Pipe Catalyst Cylinder; Converter & Pipe, Exhaust Pipe
- Replaces: 18-30-7-547-110, 18-30-7-547-111
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2006-2008 BMW Z4 | Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)
View related parts
BMW Z4 Exchange Exhaust Manifold With Catalyst
Part Number: 18407545310
Product Specifications
- Other Name: Exch. exhaust manifold with catalyst; Exhaust Manifold
- Warranty: This genuine part is guaranteed by BMW's factory warranty.
Fits the following Vehicles:
- 2006-2008 BMW Z4 | Coupe 3.0si(E86), Roadster 3.0i(E85), Roadster 3.0si(E85)

BMW Z4 Catalytic Converter

The BMW Z4 Catalytic Converter is the onboard clean air champion, taking today's nasty and poisonous carbon monoxide, hydrocarbons, and nitrogen oxides and transforming them into harmless water, carbon dioxide, and nitrogen before they leave the tailpipe. This Catalytic Converter does the job with a honeycomb substrate coated with platinum, palladium, and rhodium to maximize the contact between hot gases and the catalysts, allowing fast oxidation and reduction reactions when the engine runs at a balanced air fuel mix. The earlier generations of the Z4 applied a ceramic bead Catalytic Converter core which restricted gas flow to allow more reaction time. In the current BMW Z4, the single monolithic honeycomb Catalytic Converter was swapped for a single one that is lighter, less restrictive, and more durable. The future Z4 is expected to use an even more advanced layout. The Catalytic Converter unit of any version can heat up or clog, causing misfires, rich mixtures, oil leakage, or being hit by debris on the road. When this happens, it will rattle, lose power, trigger warning lights, or fail the emissions test. In typical BMW fashion, this important feature allows every Z4 to offer dynamic performance while still remaining environmentally conscious and helping BMW meet stringent pollution regulations.

If you are looking for OEM BMW Z4 Catalytic Converter, we highly recommend to shop with us. Not only do we offer budget friendly prices, but we also provide fast delivery. In addition, we have a hassle-free return policy on all genuine BMW Z4 Catalytic Converter that come backed by the manufacturer's warranty.

BMW Z4 Catalytic Converter Parts Questions & Experts Answers

Exchange Exhaust Manifold With Catalyst
18407518673
Q:
What are important facts to be aware of for the proper functioning of the catalytic converter on BMW Z4?
Posted by Samiha M.
A:
A forever reliable and simple equipment is a catalytic converter, which does not need any maintenance at all. Nonetheless, there are some crucial factors that one must know in order to keep it functioning well in its entire service life span. The first thing you should do is avoiding the use of leaded gasoline since this will coat the precious metals in the catalytic converter reducing its efficiency and ultimately leading to its demise. Secondly, ignition and fuel system maintenance has to be done as per manufacture's recommendation. When engine develops misfire, driver is advised not to drive until problem will be solved. Also avoid push starting or towing because it could result in a raw fuel being dumped into the catalyst that can overheat when engine starts up. Never turn off the ignition at high engine speeds too.This may contain materials harmful for converters; therefore no fuel or oil additives should be used. In case if your engine burns oil leaving blue smoke trail behind car you should stop using it anymore. Also remember that car should not be left near dry undergrowth, on long grass or on piles of dead leaves because catalytic converter works under extremely high temperatures after long distance run.Remember that catalytic converters are delicate and must never be struck with tools during servicing work.Sometimes an exhaust odour can smell slightly sulphurous but this is common and will cease after a few thousand miles have been attained by the vehicle.In conclusion, a properly maintained and driven car should have a life of 50-100000 miles from its cat converter.A nonworking cat converter must always be replaced.
Answered by BMW Parts Specialist Koleman / Oct 31, 2022