10 Top BMW Camshaft Position Sensor Replacements for Smooth Driving
Is your beloved BMW acting a bit sluggish? Perhaps the “Check Engine” light has decided to make a permanent home on your dashboard, or you’re experiencing a rough idle that just wasn’t there before. These could be tell-tale signs of a failing camshaft position sensor, a small but mighty component crucial for your engine’s optimal performance. Don’t worry, you’re not alone, and a BMW camshaft position sensor replacement is a common fix.
In this comprehensive guide, we’ll dive deep into what this sensor does, why it’s so important, and review the top 10 options available to help you get your Bimmer back to its prime. We’ve done the legwork to help you choose the best replacement that offers reliability, performance, and value, ensuring your DIY BMW camshaft position sensor replacement goes as smoothly as possible.
What Does a Camshaft Position Sensor Do?
Think of your engine as a finely tuned orchestra. Every component needs to play its part at precisely the right moment. The camshaft position sensor (CMP) is like the conductor’s ear, listening intently to the camshaft’s rotational speed and position. It sends this vital data to the engine control unit (ECU), which then uses it to perfectly time the fuel injection and spark plug firing. Without accurate information from this sensor, your engine can’t run efficiently, leading to a host of frustrating issues.
Signs You Need a BMW Camshaft Position Sensor Replacement
When this critical sensor starts to go south, your BMW will usually let you know. Keep an eye out for these common symptoms:
- Illuminated Check Engine Light (CEL): This is often the first sign, usually accompanied by specific diagnostic trouble codes (DTCs) like P0340 or P0341.
- Rough Idling or Stalling: The engine struggles to maintain a steady RPM, leading to vibrations or unexpected shutdowns.
- Difficulty Starting: Your car might crank for longer than usual or refuse to start altogether.
- Poor Acceleration or Reduced Fuel Economy: The engine might feel sluggish, lacking its usual power, and you might notice more frequent trips to the gas station.
- Engine Misfires: You might feel a distinct jerkiness or hesitation during acceleration.
Ignoring these symptoms won’t make them go away. In fact, a failing sensor can put undue stress on other engine components and potentially leave you stranded. A timely BMW camshaft position sensor replacement is often a straightforward way to restore your car’s smooth operation.
Top 10 BMW Camshaft Position Sensor Replacements
Let’s take a look at some of the best aftermarket options available to get your BMW running perfectly again.
Set of 2 Camshaft Position Sensor Compatible with BMW…
This twin-pack offers excellent value for BMW owners needing to replace both camshaft position sensors. Its standout feature is its broad compatibility with a wide range of BMW models and years, making it a versatile choice for many owners looking for a direct fit. The plug-and-play design aims to simplify the installation process, letting you get back on the road faster.
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Key Features:
- Broad vehicle fitment for various BMW models (128i, 135i, 328i, 528i, X3, X5, etc.)
- Direct OE replacement for multiple part numbers (13627525014, 13627546660, etc.)
- Designed for easy plug-and-play installation
- Comes as a set of two sensors
- 18-month warranty
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Pros:
- Great value with two sensors included
- Wide compatibility saves research time
- Direct fitment simplifies DIY replacement
- Responsive customer support
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Cons:
- Specific fitment should always be double-checked against OE numbers
- Aftermarket quality might vary compared to genuine OEM parts
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User Impressions: Customers frequently commend this set for its straightforward installation and impressive vehicle compatibility. Many report immediate improvements in engine performance and the disappearance of troublesome error codes, making it a popular choice for those seeking a cost-effective solution.
X AUTOHAUX 2pcs 13627525014 Car Camshaft Crankshaft…
The X AUTOHAUX set distinguishes itself by providing two sensors that monitor both camshaft and crankshaft rotational speeds, crucial for precise engine control. It’s built as a direct replacement, focusing on stable performance and good reliability to ensure your engine’s fuel injection is perfectly timed, restoring smooth operation.
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Key Features:
- Two-piece set, likely for intake and exhaust camshafts or camshaft and crankshaft.
- Direct replacement for OE part numbers 13627525014, 13627546660, 13627558518.
- Monitors crankshaft rotational speed for fuel injection control.
- Stable performance and good reliability.
- Wide range of BMW fitments including Z4, X6, 335is, 135i, etc.
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Pros:
- Cost-effective solution with two sensors
- Aims for stable and reliable performance
- Direct fit for specified BMW models
- Good for addressing both cam and crank sensor issues if applicable
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Cons:
- “Crankshaft” in title might be confusing if only for camshaft positions
- Needs careful OE number verification for exact fitment
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User Impressions: Users often find these sensors to be a dependable aftermarket option, noting that they effectively resolve common engine issues like misfires and check engine lights. While some emphasize the need for meticulous fitment verification, overall feedback points to a good balance of quality and affordability.
2Pcs Camshaft Position Sensor Compatible with BMW 128i 135i…
This IFATRUNK sensor set stands out for its extensive list of compatible BMW models and a comprehensive array of OEM cross-reference numbers, simplifying the selection process for many users. It focuses on easy, plug-and-play installation, promising to resolve common issues like hard starting and abnormal engine shaking quickly.
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Key Features:
- Extensive compatibility with numerous BMW models from 2007-2011.
- Matches a wide range of OEM and aftermarket part numbers (907-700, 13627525014, etc.).
- Functions to provide real-time camshaft rotation data to the ECU.
- Designed for direct replacement and easy, plug-and-play installation.
- Includes two sensors per package.
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Pros:
- Very broad compatibility list for various BMW models.
- Multiple OEM cross-references aid in finding the right part.
- Simple installation process.
- Comes as a convenient two-pack.
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Cons:
- While compatible with many, precise year/model/engine verification is always key.
- Quality perception can vary among aftermarket brands.
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User Impressions: Many users appreciate the plug-and-play simplicity and the broad compatibility of these sensors. They report successful resolution of engine issues like rough idle and improved starts, suggesting a reliable and cost-effective solution for a common BMW camshaft position sensor replacement.
TAMKKEN 12147539165 12141438081 SU5161 Camshaft Position…
The TAMKKEN sensor highlights its commitment to meeting OEM standards and specifications, suggesting a focus on quality and reliable performance. Its key advantage lies in its promise to improve engine performance and eliminate failure light codes without requiring calibration, programming, or modification, offering a hassle-free solution.
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Key Features:
- Reference OE Numbers: 12141438081, 12147539165, etc.
- Compatible with BMW 3, 5, X, and Z series from 2001-2005.
- Promises stable, durable, and long-lasting performance.
- Meets OEM standards and specifications.
- Designed for direct replacement, no calibration needed.
- One-year warranty.
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Pros:
- Aims for OEM-level performance and durability.
- No calibration or programming required post-installation.
- Improves engine performance and clears error codes.
- Clear installation steps provided.
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Cons:
- Specific to older BMW models (2001-2005).
- Always verify OE number and fitment thoroughly.
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User Impressions: Customers often praise this sensor for its direct fit and the immediate disappearance of engine warning lights. Many highlight its ease of installation and the noticeable improvement in engine smoothness, making it a favored choice for specific older BMW models.
Holstein Parts 2CAM0001 Camshaft Position Sensor -…
Holstein Parts emphasizes its precision engineering to exactly duplicate OE component function, aiming for flawless operation that restores factory levels of performance. Its standout feature is the inclusion of necessary hardware like grommets and screws (where applicable), ensuring a proper, leakproof seal and a complete installation experience.
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Key Features:
- Direct OE replacement for perfect fit, form, and function.
- Precision engineered to duplicate OE component function.
- Manufactured with premium materials for rugged, long-term performance.
- Includes grommets, screws, and other hardware for complete installation.
- Backed by Holstein Parts 3 year/36k mile warranty.
- Compatible with a broad range of BMW models from 1998-2006.
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Pros:
- Focus on OE-level performance and fuel economy.
- Premium materials for durability and heat resistance.
- Warranty provides peace of mind.
- Includes necessary installation hardware.
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Cons:
- May be priced higher than some budget options.
- Fitment check still crucial despite broad compatibility.
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User Impressions: Users frequently commend Holstein Parts for their attention to detail, especially the inclusion of installation hardware which often saves a trip to the auto parts store. Many report that the sensor restores engine performance to factory levels, making it a reliable choice for a BMW camshaft position sensor replacement.
Engine Cam Camshaft Position Sensor Replacement for BMW…
This sensor’s core strength lies in its meticulous testing process, including “environmental, endurance and end-of-line testing for Timing, Pulse Width and Signal Amplitude,” ensuring consistent product reliability. It boasts advanced circuitry and custom magnetic circuit programming for improved accuracy, aiming to deliver optimal engine performance and prevent common sensor-related issues.
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Key Features:
- Replaces multiple part numbers: PC384, 5S1226, 12141740383, etc.
- Compatible with BMW 325I, 325IS, 525I, 525IT, M3 (93-95).
- 100% environmental, endurance, and end-of-line testing.
- Advanced circuitry protects against electro-magnetic fields and power spikes.
- Integrated A/D converter and digital signal processing for accuracy.
- Custom magnetic circuit programming for improved timing accuracy.
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Pros:
- Rigorous testing ensures high reliability.
- Advanced technology for accurate signal output.
- Aims to restore optimal engine performance.
- Addresses common sensor failure symptoms effectively.
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Cons:
- Limited fitment to specific older BMW models (93-95).
- Requires careful OEM part number verification.
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User Impressions: Customers often highlight the improved engine performance and the resolution of misfire issues after installing this sensor. Its robust testing claim gives users confidence in its reliability, making it a good choice for those with compatible older BMW models.
A-Premium Engine Camshaft Position Sensor Compatible with…
A-Premium’s sensor stands out for its specific focus on L4 1.9L BMW engines from the E36 series (318i/is/ti and Z3) from 1996-1999. It emphasizes being a direct OE replacement with a one-year unlimited-mileage guarantee, providing peace of mind for owners of these particular models.
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Key Features:
- Specific vehicle fitment for BMW E36 Series 318i/318is/Z3 1996-1998 (L4 1.9L), 318ti 1996-1999 (L4 1.9L).
- Reference numbers: 907-742, 907742, PC395, 12141743072.
- 3 Pins, Blade terminal type.
- Direct OE replacement brand new sensor.
- One-year unlimited-mileage guarantee.
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Pros:
- Strong focus on specific fitment, reducing guesswork for compatible models.
- Reliable brand with a good warranty.
- Direct fit for easy installation.
- Addresses issues common to the specific L4 1.9L engines.
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Cons:
- Very limited vehicle compatibility compared to other options.
- Ensure your specific E36 model matches the L4 1.9L engine.
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User Impressions: Owners of the compatible E36 models appreciate the precise fitment and the ease of installation this A-Premium sensor offers. Many report that it effectively resolves check engine lights and rough running conditions specific to their vehicles, reinforcing confidence in the brand’s direct replacement claims.
A-Premium Engine Camshaft Position Sensor Compatible with…
Similar to its counterpart, this A-Premium sensor is tailored for specific BMW models, particularly the L6 2.5L and 3.0L engines from 1993-1995 (325i/is, 525i/iT, M3). Its strength lies in offering a direct OE replacement with a robust one-year unlimited-mileage guarantee, providing a reliable and confident purchase for owners of these older, classic BMWs.
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Key Features:
- Specific vehicle fitment: BMW 325i/325is/525i 1993-1995 (L6 2.5L), 525iT 1993 (L6 2.5L), M3 1995 (L6 3.0L).
- Reference numbers: 2351469, 12141740959, etc.
- 3 Pins, Blade terminal type.
- Direct OE replacement brand new sensor.
- One-year unlimited-mileage guarantee.
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Pros:
- Tailored fitment for specific classic BMW L6 engines.
- Reputable brand with a strong warranty.
- Designed for direct replacement and ease of installation.
- Aids in restoring performance for specific M3 and 3/5 series models.
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Cons:
- Highly specialized fitment, not for general use.
- Double-check reference numbers for older, potentially less common parts.
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User Impressions: Users with the specified older BMW models often praise this sensor for its perfect fit and the seamless resolution of engine issues. The generous warranty also instills confidence, making it a solid choice for a targeted BMW camshaft position sensor replacement on these classic vehicles.
ZBN 13627525014 13627546660 13627558518 CAM Camshaft…
The ZBN camshaft position sensor prides itself on its robust construction, meeting OEM standards, and its hassle-free direct replacement design. Its key selling point is the promise to improve performance and eliminate trouble codes without needing any calibration or programming, ensuring a smooth installation process for various modern BMW models.
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Key Features:
- One-year quality warranty.
- Meets OEM standards and specifications.
- Designed for direct replacement; no calibration/programming needed.
- Includes clear installation steps.
- Extensive compatibility with many BMW models from 2006-2012 (1, 3, 5, 7, X, Z series).
- Multiple OE part number cross-references.
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Pros:
- User-friendly installation with no special tools needed.
- Aims to improve engine performance and clear error codes.
- Solid one-year warranty.
- Wide range of compatible modern BMW models.
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Cons:
- As an aftermarket part, verify fitment meticulously.
- Consistency in performance can sometimes vary between individual units.
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User Impressions: Many users find the ZBN sensor to be a highly effective and budget-friendly solution. They often report quick fixes for engine codes and improved vehicle responsiveness, valuing the direct plug-and-play design that makes a DIY BMW camshaft position sensor replacement feasible for many.
2Pcs Engine CAM Camshaft Position Sensor PC770 Compatible…
This TINGYINGDA sensor set stands out for its remarkably comprehensive fitment list, covering a vast array of BMW models and years, including many newer generation vehicles. Its core strength lies in promising to meet or exceed OEM performance through innovative engineering and quality control, ensuring a reliable and risk-free replacement experience.
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Key Features:
- Extremely broad compatibility across numerous BMW series and years (1, 2, 3, 4, 5, 6, 7, X, Z series from 2006-2019).
- Reference numbers: PC770, 13627525014, 13627546660, 13627558518.
- OE Replacement Brand New CAR CAM Crankshaft Position Sensor (implies suitability for both).
- Innovative engineering and quality control to meet/exceed OEM performance.
- Comes with a full warranty for risk-free purchase.
- Includes two sensors.
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Pros:
- Unparalleled vehicle compatibility for a wide range of BMWs.
- Aims for OEM or better performance.
- Two sensors included offers great value.
- Confidence-inspiring warranty.
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Cons:
- Given the vast compatibility, double-checking OE numbers is paramount.
- “Crankshaft” in the description might need clarification if specifically looking for camshaft sensors.
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User Impressions: Customers are often impressed by the sheer breadth of compatible models and report successful installations across many different BMW vehicles. The promise of OEM-level performance, coupled with a full warranty, provides significant confidence for those undertaking a BMW camshaft position sensor replacement.
Conclusion
A failing camshaft position sensor can turn your driving experience from smooth to frustrating. Thankfully, a BMW camshaft position sensor replacement is a common and often DIY-friendly task that can restore your vehicle’s performance and efficiency. Whether you’re driving an older E36 or a more modern F-series, there’s a reliable aftermarket option available. Remember to always double-check compatibility using your specific BMW’s year, model, and the original part number to ensure a perfect fit. With the right part, you’ll have your BMW purring like new in no time!
FAQ Section
Q1: What exactly does a BMW camshaft position sensor do?
A1: The camshaft position sensor monitors the rotational speed and exact position of the camshaft. It sends this crucial data to the engine control unit (ECU), which then uses it to precisely time the fuel injection and ignition spark, ensuring your engine runs efficiently and smoothly.
Q2: What are the common symptoms of a bad camshaft position sensor in a BMW?
A2: Common symptoms include the illumination of the “Check Engine” light, a rough idle, engine stalling, difficulty starting, decreased fuel efficiency, and a noticeable loss of power or hesitation during acceleration. You might also experience engine misfires.
Q3: Can I drive my BMW with a bad camshaft position sensor?
A3: While you might be able to drive your BMW with a faulty sensor, it’s not recommended. Driving with a bad sensor can lead to further engine damage, reduced fuel economy, and potentially leave you stranded. It’s best to address the issue as soon as possible.
Q4: Is a BMW camshaft position sensor replacement a difficult DIY job?
A4: For many BMW models, replacing the camshaft position sensor is considered a moderately easy DIY task. It typically involves locating the sensor, disconnecting a wiring harness, unbolting the old sensor, and installing the new one. No special tools are usually required beyond basic wrenches and sockets, but some locations can be tricky to access.
Q5: How much does a BMW camshaft position sensor replacement cost?
A5: The cost of the sensor itself can range from $20 to $100+ for aftermarket options, with OEM parts being significantly more expensive. If you take it to a mechanic, labor costs can add another $100-$300, depending on the mechanic’s rates and the specific BMW model’s accessibility.
Q6: How often should I replace my BMW camshaft position sensor?
A6: There’s no specific maintenance schedule for camshaft position sensors. They are typically replaced only when they fail. Their lifespan can vary greatly, but they can last well over 100,000 miles. It’s more about symptom-based replacement rather than routine maintenance.
Q7: What’s the difference between a camshaft and a crankshaft position sensor?
A7: Both are crucial for engine timing. The camshaft position sensor (CPS or CMP) tells the ECU the position of the camshaft, which dictates valve timing. The crankshaft position sensor (CKP or CRANK) tells the ECU the position and speed of the crankshaft, which dictates piston position. The ECU uses data from both to accurately time fuel injection and ignition.
Q8: Do I need to clear codes after replacing the sensor?
A8: Yes, after a BMW camshaft position sensor replacement, it’s crucial to clear any stored diagnostic trouble codes (DTCs) from the ECU using an OBD-II scanner. This allows the engine control unit to recognize the new sensor and operate correctly.
