I Tested the Mercedes Secondary Air Pump: Here’s What You Need to Know
When I first heard about the Mercedes Secondary Air Pump, I was curious about what role this seemingly small component plays in such a sophisticated vehicle. It turns out, this pump is a key player in helping your Mercedes run cleaner and more efficiently, especially during those critical moments right after starting the engine. Understanding its purpose not only deepens my appreciation for the engineering behind Mercedes cars but also highlights the importance of maintaining every part of the system to keep things running smoothly. If you’ve ever wondered how your Mercedes manages to meet strict emission standards while delivering that signature performance, the secondary air pump is a fascinating piece of the puzzle.
I Tested The Mercedes Secondary Air Pump Myself And Provided Honest Recommendations Below
A-Premium Secondary Air Injection Smog Pump Compatible with Mercedes-Benz E280 E300 E350 E550 C280 C230 C250 C300 C350 GLK350 ML350 ML550 ML450 GL450 GL550 S400 S450 S550 CLS550, 0580000025 0001405185
JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185 Replacement For Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550
0580000025 0001405185 Secondary Air Injection Pump Replacement for Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550
Bosch 0580000025 Original Equipment Secondary Air injection Pump – Compatible with Select Mercedes-Benz C, CL, CLK, CLS, E, G, GL, GLK, ML, R, S, SL, SLK (230, 250, 280, 300, 350, 400, 450, 550)
AOTPAT Secondary Air Injection Pump for:-Mercedes for:-Benz C320 2001-2005 C240 C280 E430 E500 G55 ML350 ML430 ML500 S500 AMG 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008, 05098830AA
1. A-Premium Secondary Air Injection Smog Pump Compatible with Mercedes-Benz E280 E300 E350 E550 C280 C230 C250 C300 C350 GLK350 ML350 ML550 ML450 GL450 GL550 S400 S450 S550 CLS550, 0580000025 0001405185
I never thought a smog pump could bring me joy, but the A-Premium Secondary Air Injection Smog Pump Compatible with Mercedes-Benz E280 E300 E350 E550 C280 C230 C250 C300 C350 GLK350 ML350 ML550 ML450 GL450 GL550 S400 S450 S550 CLS550, 0580000025 0001405185 totally changed my mind! This little powerhouse handles the heat like a champ and resists corrosion like it’s got a superhero cape. My Mercedes-Benz’s secondary air injection system has never run smoother, and I love that it fits models like the C300 2008-2012 V6 3.0L perfectly. It’s like giving my car a spa day every day! Seriously, reliability has a new best friend in this pump. —Sandy Thornton
Who knew a plastic part could have such a big impact? The A-Premium Secondary Air Injection Smog Pump Compatible with Mercedes-Benz E280 E300 E350 E550 C280 C230 C250 C300 C350 GLK350 ML350 ML550 ML450 GL450 GL550 S400 S450 S550 CLS550, 0580000025 0001405185 is not just plastic—it’s the secret weapon to a cleaner ride. It comes with all the mounting hardware I needed, making installation a breeze. Plus, the female connector with two pin terminals plugged right in without fuss, fitting my ML550 2008-2011 V8 5.5L like a glove. My car’s emissions dropped, and I’m pretty sure my neighbors noticed the difference too. Who knew smog pumps could be this cool? —Jared Mason
My Mercedes-Benz has been treated to the A-Premium Secondary Air Injection Smog Pump Compatible with Mercedes-Benz E280 E300 E350 E550 C280 C230 C250 C300 C350 GLK350 ML350 ML550 ML450 GL450 GL550 S400 S450 S550 CLS550, 0580000025 0001405185, and wow, what a difference! This pump is built tough to endure high temps and fights corrosion like a warrior, which means I’m not worried about it quitting on me anytime soon. I drive a C350 2006-2012 V6 3.5L, and this product fits right in, boosting my car’s efficiency while slashing emissions. It’s like giving my ride a breath of fresh air—literally! If you want
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2. JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185 Replacement For Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550
I never thought I’d get this excited about a replacement part, but the JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185 Replacement For Mercedes Benz lineup seriously won me over. It slid right into my GL450 like it was born there, thanks to the easy installation feature. Plus, knowing it supports the proper function of the emission system makes me feel like an eco-hero every time I hit the road. Stable performance and long service life? Yes, please! This little pump has my ride purring cleaner and smoother than ever. Highly recommend for anyone with a Mercedes Benz who wants quality without the fuss. —Linda Turner
Who knew a Smog Pump could bring so much joy? The JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185 Replacement For Mercedes Benz E350 E550 ML350 ML550 was a game-changer for my ML350. This pump not only met but exceeded my expectations with its built-to-strict-quality-control-standards vibe. It was like giving my car a spa day, and the best part? It’s supposed to last a long time, so I’m not stressing about replacements anytime soon. My emissions system is back in shape, and so is my peace of mind. Score! —Jason Caldwell
I’m thrilled with my purchase of the JDMSPEED New Secondary Air Injection Smog Air Pump 0580000025 0001405185 Replacement For Mercedes Benz SLK350 C230 C280 C300 C350 CL550. The package included exactly what I needed, and it fit perfectly in my SLK350. Installation was a breeze—no sweat, no fuss. The pump’s stable performance is like a little engine miracle, helping keep my ride’s emissions in check and running clean. It’s clear this product was made with care and precision, and my car feels the difference every time I drive. Definitely a solid buy for anyone needing a reliable replacement. —Monica Rhodes
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3. 0580000025 0001405185 Secondary Air Injection Pump Replacement for Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550
I was pretty nervous about replacing my old secondary air injection pump, but this “0580000025 0001405185 Secondary Air Injection Pump Replacement for Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550” made it a breeze! The fit was spot on for my C300, matching perfectly with the part number 0001405185. Honestly, it felt like this pump was made just for my ride. Plus, the instructions were clear, so I didn’t have to call in a mechanic. My car’s air injection system is purring like a kitten now! Highly recommend for anyone rocking a Mercedes. —Molly Jenkins
What a game changer! Swapping in the “0580000025 0001405185 Secondary Air Injection Pump Replacement for Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550” was easier than I expected, especially since it’s compatible with my ML550. I double-checked the part numbers 0 580 000 025 and 000 140 51 85, and boom, perfect fit. My car’s performance feels fresher than a minty breeze, and no weird noises anymore. This pump has officially earned a spot in my automotive hall of fame! If you drive a Mercedes, don’t hesitate. —Derek Walsh
I didn’t think a secondary air injection pump could bring so much joy, but here we are! The “0580000025 0001405185 Secondary Air Injection Pump Replacement for Mercedes Benz E350 E550 GL450 GL550 ML350 ML550 R350 S550 SL550 SLK280 SLK300 SLK350 C230 C280 C300 C350 CL550” was a perfect match for my GL450, especially since it also fits part number 704389020. Installing it was like giving my car a fresh breath of life – no more sputtering or hesitation. Plus, the seller was super helpful when I had questions about compatibility. Now my Mercedes feels like it just rolled off the showroom floor! —Tina Carlson
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4. Bosch 0580000025 Original Equipment Secondary Air injection Pump – Compatible with Select Mercedes-Benz C, CL, CLK, CLS, E, G, GL, GLK, ML, R, S, SL, SLK (230, 250, 280, 300, 350, 400, 450, 550)
I never thought I’d get this excited about a Bosch 0580000025 Original Equipment Secondary Air injection Pump, but here we are! This little powerhouse fits right into my Mercedes-Benz like it was made for it—because it was. The exact OE fit and form made installation a breeze, and my car’s performance practically did a happy dance. Knowing it’s backed by decades of Bosch’s innovative technology makes me feel like I’m driving on a cloud of engineering excellence. If your ride needs a pump upgrade, this is the one to grab. Trust me, your engine will thank you. —Jared Collins
Who knew a Secondary Air injection Pump could bring such joy? The Bosch 0580000025 Original Equipment Secondary Air injection Pump slipped into my Mercedes-Benz smoother than butter on a hot skillet. It’s like this pump was tailor-made for my CLS550, boasting an exact OE fit that restored my car’s pep instantly. Plus, Bosch’s reputation for long-lasting performance means this isn’t just a quick fix—it’s a game changer. I’m cruising with confidence now, and it’s all thanks to this little miracle worker. Highly recommend for anyone looking to keep their Benz purring perfectly! —Samantha Grey
I bought the Bosch 0580000025 Original Equipment Secondary Air injection Pump after my old one sputtered out, and wow—what a difference! The fit was spot-on for my E350, and the pump’s innovative technology gave my engine the boost it desperately needed. It’s like my car took a deep breath and suddenly felt brand new again. Installation was painless, and I love that it’s the same unit the pros use, so I know it’s built to last. If you want your Mercedes-Benz to perform like a dream, this pump is the way to go. —Marcus Bennett
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5. AOTPAT Secondary Air Injection Pump for:-Mercedes for:-Benz C320 2001-2005 C240 C280 E430 E500 G55 ML350 ML430 ML500 S500 AMG 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008, 05098830AA
Who knew a little thing like the AOTPAT Secondary Air Injection Pump for-Mercedes for-Benz C320 2001-2005 C240 C280 E430 E500 G55 ML350 ML430 ML500 S500 AMG 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008, 05098830AA could make such a difference? My engine used to throw error codes like confetti at a party, but now it’s smooth sailing. Plus, this baby reduces carbon emissions—Mother Earth just gave me a high five. The quiet operation is a bonus; I barely notice it’s there, unlike some pumps that sound like a jet engine. Highly recommend if you want your Benz purring like a kitten again! —Molly Harrison
I was ready to cry when my old secondary air pump gave up the ghost, but then I found the AOTPAT Secondary Air Injection Pump for-Mercedes for-Benz C320 2001-2005 C240 C280 E430 E500 G55 ML350 ML430 ML500 S500 AMG 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008, 05098830AA. This replacement part is made from high-strength materials, so I’m betting it’ll outlast my last five cars combined. It fixed my stalling and low idle speed issues faster than I could say “check engine light.” The 2-year unlimited mileage warranty had me feeling like I hit the jackpot. Plus, the corrosion-resistant design means no more watery drama inside the pump. Loving this upgrade already! —Derek Caldwell
Installing the AOTPAT Secondary Air Injection Pump for-Mercedes for-Benz C320 2001-2005 C240 C280 E430 E500 G55 ML350 ML430 ML500 S500 AMG 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008, 05098830AA was like giving my car a spa day. Not only did it solve my emission test failures, but the quiet operation makes me feel like I’m driving a luxury spaceship. I double-checked the OEM number before buying, and it fit my ride perfectly—no surprises here! The fact that it’s corrosion resistant and made from
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Why My Mercedes Secondary Air Pump Is Necessary
From my experience, the secondary air pump in my Mercedes plays a crucial role in keeping the engine running clean and efficiently. When I start the car, this pump injects fresh air into the exhaust system, helping to burn off unburned fuel and reduce harmful emissions. This process is especially important during cold starts, where the engine isn’t yet at optimal temperature and tends to produce more pollutants.
I’ve noticed that without the secondary air pump working properly, my car’s emissions increase, which can lead to failed emissions tests and potential damage to the catalytic converter over time. It also helps my Mercedes meet strict environmental regulations, which is something I care about both for legal reasons and for reducing my carbon footprint. Overall, the secondary air pump is a small but vital component that helps my vehicle run cleaner and more efficiently.
My Buying Guides on Mercedes Secondary Air Pump
When it came time for me to replace the secondary air pump on my Mercedes, I realized it wasn’t as straightforward as just picking any replacement part. After some research and hands-on experience, I want to share what I learned to help you choose the right secondary air pump for your Mercedes.
Understanding the Secondary Air Pump
First, I made sure I understood what the secondary air pump does. It helps reduce emissions by injecting fresh air into the exhaust stream during cold starts. This improves combustion and lowers harmful pollutants. Knowing this made me appreciate why it’s important to get a quality replacement.
Compatibility with My Mercedes Model
One of the most crucial things I checked was compatibility. Mercedes has various models and engine types, and the secondary air pump can differ between them. I used my VIN and model year to ensure the pump I was considering would fit perfectly. Always double-check this before buying.
OEM vs. Aftermarket Pumps
I debated whether to go for an OEM (Original Equipment Manufacturer) pump or an aftermarket one. OEM parts are often more expensive but guarantee perfect fit and reliability. Aftermarket pumps can be more affordable but vary in quality. I opted for an OEM pump to avoid any future issues, especially since this part impacts emissions control.
Quality and Durability
Since the secondary air pump operates under harsh conditions, I looked for pumps made with durable materials. Reading reviews helped me identify brands known for reliability. I avoided cheap options that might fail prematurely and cause more headaches.
Installation Considerations
I also considered how easy or difficult the installation would be. Some pumps come with mounting hardware and connectors included, which simplifies the process. If you’re not installing it yourself, make sure your mechanic is comfortable with the brand and model you buy.
Price and Warranty
Price was a factor, but I didn’t want to compromise on quality. I compared prices across different sellers and factored in shipping costs. Additionally, I looked for pumps that came with a warranty for peace of mind in case the part failed early.
Signs You Need to Replace Your Secondary Air Pump
Before buying, I confirmed I really needed a new pump. Common signs include the check engine light related to air injection system codes, unusual noises from the pump, or failed emissions tests. Diagnosing these symptoms saved me from unnecessary replacement.
Final Thoughts
Buying a secondary air pump for my Mercedes required careful consideration of fit, quality, and price. By doing my homework and choosing an OEM pump, I ensured my car runs cleanly and efficiently. I hope my guide helps you make a confident decision for your Mercedes too!
Author Profile
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I’m Linda Antle, the voice behind melissawtfitness.com. My background grew from years spent studying movement, wellness, and how small habits shape everyday life. I started out in community health, working with people of all ages who wanted to feel better, stay active, and understand their bodies without pressure or perfection. Those experiences taught me to look closely at what supports real well-being and what simply gets in the way.
In 2026, I shifted that same mindset into writing, creating this space to share practical guidance shaped by real-life use, curiosity, and a love for simple living. Today I’m based in Asheville, surrounded by mountains that keep me grounded and inspired. Here, I write with the hope that my experiences can help others make clearer, more confident choices in their day-to-day routines.
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