Premium European Aftermarket Parts | Specialized Engine Components – Page 2

Find Parts by Vehicle

Year

Make

Model

Part Number (Optional)

FAQ & Support

🚦 1. Trouble Codes & Symptoms

Q1: My car shows codes like P0420 / P0171 / P0138. What do they mean?

These are common codes related to the fuel system or oxygen sensors:

P0420: Catalyst efficiency below threshold
P0171: System too lean
P0138: O2 sensor voltage high

They often indicate a worn oxygen sensor, exhaust leak, or ignition issue. If you're not sure, simply tell us your year, make, model, and engine—we'll check the exact part you need.

Q2: My engine shakes at idle. Is my ignition coil bad?

It's very possible. Common symptoms of a failing ignition coil include:

Rough idle or shaking
Hard cold starts
Poor acceleration
Higher fuel consumption
Misfire popping noise

Tell us your vehicle info—our team can help you identify the cause.

Q3: What are the symptoms of a bad oxygen sensor?

Typical signs include: Check Engine Light on, Increased fuel consumption, Poor acceleration, Strong fuel smell, and Slow throttle response.

Most sensors should be replaced every 80,000–100,000 km.

🔍 2. Fitment & Compatibility

Q4: How do I know which oxygen sensor fits my car?

Just provide: Year, Make, Model, and Engine size.

We'll confirm: Upstream or downstream, Correct connector, Proper reference number, and Federal vs. California emissions compatibility.

Q5: What's the difference between ignition coils?

High-quality aftermarket: Close to Standard but more affordable.

We only offer high-grade, reliable ignition coils.

Q6: How many oxygen sensors does my car have?

Most vehicles have 2–4 sensors (Upstream front and Downstream rear). We can confirm the exact number for your vehicle.

🛒 3. Buying, Quality & Concerns

Q7: Are cheap oxygen sensors reliable?

They work for a short time but usually cause issues like short lifespan, slow response, and frequent check engine lights.

We only sell new, high-quality, fully tested sensors.

Q8: How can I avoid buying a refurbished or used auto part?

Check for scratches on the connector, dirty wiring, or marks on threads.

Our parts are 100% brand new, never refurbished, and fully tested.

🧰 4. Installation & Usage

Q9: Can I install an oxygen sensor myself?

Yes. Difficulty: medium.

You'll need an O2 sensor socket, Anti-seize compound, and a Torque wrench. We recommend clearing fault codes with an OBD scanner after installation.

Q10: Do ignition coils need programming after replacement?

In most vehicles, no programming is required. Just swap the old coil with the new one.

💰 5. Value & Performance

Q11: Your parts cost less than Other accessories. Are they really reliable?

Yes—our parts use the same-grade materials and testing standards as suppliers. Because we don't go through dealer channels, the price is much more affordable.

About us

Since its inception, Automotive Leader has been guided by a simple mission: to provide high-performance aftermarket parts for automotive technicians and DIY enthusiasts.

The website is jointly operated by Trademark Name: Automotive-leader Store registered at Physical Address: Room 602, No. 152 Helong East Road, Helong Subdistrict, Baiyun District, Guangzhou City Postal Code: 510000 and Company name：BLUE STAR TRADING LIMITED registered at Company address：RM C，6/F，WORLD TRUST TOWER 50 STANLEY STREET CENTRAL HK

U.S. Address:
7600 LTC Parkway 34986
PORT SAINT LUCIE, FL - United States

Phone Number: +86 15812449181

Email: support@automotive-leaderstore.com

Logistics Policy

1. U.S. Warehouse (Standard Option)
Handling time: 1-3 business days
Transit time (days): 3-6 business days via USPS/UPS/FedEx.

2. China Warehouse (Standard Option)
Handling time: 1-3 business days
Transit time (days): 14-22 business days via USPS/UPS/FedEx.

Refund and Return Policy

30-Day Return Policy / Return shipping is free.

We do not accept direct exchanges.

After receiving and inspecting your returned item, we will notify you whether your refund has been approved.

If approved, the refund will be processed back to your original payment method within 5 business days.

Please note that your bank or credit card company may also require additional time to process and reflect the refund.

If you have not received your refund within 10 business days after your return request has been approved, please contact us.

Contact: support@automotive-leaderstore.com

Account

European/Others

Find Parts by Vehicle

2Pcs O2 Sensor Upstream & Downstream for Audi TT VW Jetta Golf 1.8T - 06A906262Q 234-4809 234-4808

Upstream Wideband O2 Sensor for Mercedes C300 E350 GL450 (W204/W212) - 68012050AA 234-5096

Suitable for Upstream Air Fuel Ratio Sensor for Land Rover LR4 Range Rover Sport 5.0L - 234-9095 250-54072

4Pcs Air Fuel Ratio & O2 Sensor Set for Land Rover LR3 Range Rover Sport 4.4L 234-9075 234-4264

Ignition Coil for Ford Edge Fusion Mustang & Mazda CX-9 3.5L 3.7L | UF553, 7T4Z12029E

Suitable for Upstream Wideband O2 Sensor for Mini Cooper Clubman 1.6L (2007-2010) - 234-5135

4Pcs O2 Sensor Set for Mercedes Benz C300 E350 CLK350 (W204/W211) | 234-5091 234-4881

Suitable for Downstream O2 Sensor for Land Rover LR4 Range Rover Sport 3.0L 5.0L - 234-4795

Suitable for Upstream O2 Sensor for Jeep Cherokee Dodge Dart Chrysler 200 2.4L - 234-5150

Suitable for Upstream Air Fuel Ratio Sensor for Volvo S60 XC60 XC90 2.0L Turbo (16-20)-234-9160

Downstream Oxygen Sensor for Audi A4 TT VW Jetta Golf 2.0L | 234-4808

5-Wire Wideband O2 Sensor for Audi A4 TT VW Golf Jetta 1.8T - 234-5112 0258007351

Suitable for Downstream Oxygen Sensor for Volvo S60 S90 V90 XC60 XC90 (2016-2020) - 234-8010 31439481

4Pcs Oxygen Sensor Set for Mercedes Benz C300 E350 ML350 (W204/W212) -0035427018 0045420818

Suitable for 6Pcs Ignition Coil Set for Land Rover Freelander 2.5L (2002-2006) - UF534

5-Wire Wideband Upstream Air Fuel Ratio Oxygen Sensor for VW Jetta GTI Passat Audi A3 2.0L | 06J906262AA 234-5107

6Pcs Ignition Coil for Ford Edge Flex Fusion Taurus Lincoln MKZ Mazda 6 CX-9 3.5L 3.7L V6 | 7T4Z12029E

4Pcs Fuel Injectors for VW CC Eos GTI Tiguan Golf Beetle Jetta Passat Audi A3 A4 Q5 2.0T | 06H906036G

Upstream Nitrogen Oxide NOx Sensor for VW Touareg Audi Q7 A6 A8 TDI Diesel (2011-2015) | 059907807C 5WK96637B

NOx Sensor for Audi A4 Seat Alhambra VW Sharan 2.0L TDI (2007-2012) | 8K0907807E 5WK96688

Suitable for Rear NOx Sensor 8-Wire for Mercedes-Benz GLA CLA ML GL GLS S-Class | A0009053603 5WK96683D

NOx Sensor 8-Wire for Mercedes Sprinter 2500 3500 E250 ML250 GL350 BlueTEC (2014-2016) | A0009053503 5WK96682D

4Pcs Oxygen Sensor for Land Rover LR3 Range Rover Sport 4.0L 4.4L (05-09) | 2 * 234-9075 234-4265 234-4266

Suitable for Upstream Air Fuel Ratio Oxygen Sensor for Land Rover LR3 Range Rover Sport 4.4L (2005-2009) | 234-9075 MHK500840

FAQ & Support

🚦 1. Trouble Codes & Symptoms

🔍 2. Fitment & Compatibility

🛒 3. Buying, Quality & Concerns

🧰 4. Installation & Usage

💰 5. Value & Performance

About us

Logistics Policy

Refund and Return Policy

Country/Region

Country/Region

European/Others

Find Parts by Vehicle

2Pcs O2 Sensor Upstream & Downstream for Audi TT VW Jetta Golf 1.8T - 06A906262Q 234-4809 234-4808

Upstream Wideband O2 Sensor for Mercedes C300 E350 GL450 (W204/W212) - 68012050AA 234-5096

Suitable for Upstream Air Fuel Ratio Sensor for Land Rover LR4 Range Rover Sport 5.0L - 234-9095 250-54072

4Pcs Air Fuel Ratio & O2 Sensor Set for Land Rover LR3 Range Rover Sport 4.4L 234-9075 234-4264

Ignition Coil for Ford Edge Fusion Mustang & Mazda CX-9 3.5L 3.7L | UF553, 7T4Z12029E

Suitable for Upstream Wideband O2 Sensor for Mini Cooper Clubman 1.6L (2007-2010) - 234-5135

4Pcs O2 Sensor Set for Mercedes Benz C300 E350 CLK350 (W204/W211) | 234-5091 234-4881

Suitable for Downstream O2 Sensor for Land Rover LR4 Range Rover Sport 3.0L 5.0L - 234-4795

Suitable for Upstream O2 Sensor for Jeep Cherokee Dodge Dart Chrysler 200 2.4L - 234-5150

Suitable for Upstream Air Fuel Ratio Sensor for Volvo S60 XC60 XC90 2.0L Turbo (16-20)-234-9160

Downstream Oxygen Sensor for Audi A4 TT VW Jetta Golf 2.0L | 234-4808

5-Wire Wideband O2 Sensor for Audi A4 TT VW Golf Jetta 1.8T - 234-5112 0258007351

Suitable for Downstream Oxygen Sensor for Volvo S60 S90 V90 XC60 XC90 (2016-2020) - 234-8010 31439481

4Pcs Oxygen Sensor Set for Mercedes Benz C300 E350 ML350 (W204/W212) -0035427018 0045420818

Suitable for 6Pcs Ignition Coil Set for Land Rover Freelander 2.5L (2002-2006) - UF534

5-Wire Wideband Upstream Air Fuel Ratio Oxygen Sensor for VW Jetta GTI Passat Audi A3 2.0L | 06J906262AA 234-5107

6Pcs Ignition Coil for Ford Edge Flex Fusion Taurus Lincoln MKZ Mazda 6 CX-9 3.5L 3.7L V6 | 7T4Z12029E

4Pcs Fuel Injectors for VW CC Eos GTI Tiguan Golf Beetle Jetta Passat Audi A3 A4 Q5 2.0T | 06H906036G

Upstream Nitrogen Oxide NOx Sensor for VW Touareg Audi Q7 A6 A8 TDI Diesel (2011-2015) | 059907807C 5WK96637B

NOx Sensor for Audi A4 Seat Alhambra VW Sharan 2.0L TDI (2007-2012) | 8K0907807E 5WK96688

Suitable for Rear NOx Sensor 8-Wire for Mercedes-Benz GLA CLA ML GL GLS S-Class | A0009053603 5WK96683D

NOx Sensor 8-Wire for Mercedes Sprinter 2500 3500 E250 ML250 GL350 BlueTEC (2014-2016) | A0009053503 5WK96682D

4Pcs Oxygen Sensor for Land Rover LR3 Range Rover Sport 4.0L 4.4L (05-09) | 2 * 234-9075 234-4265 234-4266

Suitable for Upstream Air Fuel Ratio Oxygen Sensor for Land Rover LR3 Range Rover Sport 4.4L (2005-2009) | 234-9075 MHK500840

FAQ & Support

🚦 1. Trouble Codes & Symptoms

🔍 2. Fitment & Compatibility

🛒 3. Buying, Quality & Concerns

🧰 4. Installation & Usage

💰 5. Value & Performance

About us

Logistics Policy

Refund and Return Policy