Complete Guide: FORTHING M4 ABS Sensor Replacement for Safer Driving

Why ABS Sensors Are Critical for Your FORTHING M4

The ABS (Anti-lock Braking System) sensor is one of the most vital components in your vehicle’s braking safety technology. It detects wheel speed and sends signals to the ECU to prevent wheel lock-up during emergency braking.

If your ABS sensor fails, your M4 might still brake, but you’ll lose anti-lock capability, increasing the risk of sliding, especially on wet or icy roads.

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How to Know It’s Time for a FORTHING M4 ABS Sensor Replacement

Failing ABS sensors aren’t always obvious at first—but ignoring them can compromise your safety.

Warning Signs Include:

• ABS warning light on dashboard

• Pulsating brake pedal under normal braking

• Inconsistent braking on wet surfaces

• Diagnostic trouble codes (DTCs) showing via OBD-II

If any of these signs appear, it’s time to inspect and potentially replace your FORTHING M4 ABS sensor.

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Why Choose OEM ABS Sensors for the M4?

Using a genuine FORTHING OEM sensor guarantees compatibility, longevity, and proper communication with your vehicle’s ECU.

Purchasing from FORTHINGPARTS ensures you receive factory-tested components that won’t trigger false alarms or create electrical noise.

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Tools You Need for DIY ABS Sensor Replacement

Replacing an ABS sensor is one of the more approachable vehicle repairs, provided you follow proper procedures.

Required Tools:

• Jack and jack stands

• Lug wrench

• Socket set (8–10mm)

• Torque wrench

• Anti-seize grease

• OBD-II scanner (optional for diagnostics)

Time Required: 30–45 minutes per sensor

Pro Tip: Always replace sensors in pairs (front or rear) to maintain symmetrical braking feedback.

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How to Replace a FORTHING M4 ABS Sensor – Step-by-Step

Disclaimer: Ensure the vehicle is parked on level ground with the parking brake engaged.

Step 1: Remove the Wheel

• Loosen the lug nuts

• Jack up the vehicle and place it on jack stands

• Remove the wheel to access the sensor

Step 2: Locate the Sensor

• Typically mounted behind the brake rotor

• Trace the cable to the sensor bolt

Step 3: Remove Old Sensor

• Disconnect the electrical connector

• Remove mounting bolt using socket wrench

• Gently pull out the sensor (use penetrating oil if rusted)

Step 4: Clean the Mounting Surface

• Remove dirt/rust using a wire brush

• Apply a thin layer of anti-seize compound

Step 5: Install New Sensor

• Insert the new OEM sensor

• Tighten the mounting bolt to spec

• Connect the electrical plug

Step 6: Reassemble and Test

• Reinstall the wheel

• Lower vehicle and test drive

• Use OBD-II tool to reset ABS warning light if needed

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How Much Does FORTHING M4 ABS Sensor Replacement Cost?

Costs vary depending on location and labor rates.

Buying from FORTHINGPARTS helps reduce cost while ensuring authentic quality.

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Shipping FORTHING M4 ABS Sensors Across Europe

We ship genuine FORTHING parts—including ABS sensors—to all European countries with fast logistics and full tracking. Whether you're in Germany, France, Italy, or Poland, we offer:

• Reliable shipping in 3–7 days

• Multilingual support

• VIN-based part verification

• Secure payment and buyer protection

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Why FORTHINGPARTS Is the Trusted Source

Our platform is dedicated exclusively to FORTHING maintenance and performance parts. We don’t sell generic substitutes.

Why Customers Choose Us:

• Direct relationship with FORTHING OEM suppliers

• Expert team to verify fitment based on VIN

• Transparent pricing and return policy

• Thousands of satisfied EU customers

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Customer Testimonial

“After getting an ABS warning on my M4, I ordered a replacement from FORTHINGPARTS. The delivery was fast, and the part fit like a glove. The warning light disappeared instantly after install.”
— Matteo L., Milan, Italy

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FAQs – FORTHING M4 ABS Sensor Replacement

Can I replace only one ABS sensor or do I need to replace all four?
You can replace only the faulty one, but it’s best to replace both sensors on the same axle for balanced performance.

What happens if I ignore a faulty ABS sensor?
The anti-lock braking system will be disabled, increasing the risk of wheel lock-up in emergencies.

How do I verify which ABS sensor is bad?
Use an OBD-II scanner to read ABS codes or consult a professional diagnostic service.

Do I need to reset the system after replacement?
Not always, but some models may require clearing the ABS fault code via a scan tool.

Does FORTHINGPARTS offer ABS sensors for other models too?
Yes! We stock sensors for FORTHING T5 EVO, V9, S7, and more.

Can I install it myself if I’m not a mechanic?
Yes—if you're handy with tools and follow instructions carefully. Or ask a professional.

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Conclusion

Performing a FORTHING M4 ABS sensor replacement is more than just fixing a light on your dashboard—it's restoring critical safety functionality. With quality OEM parts from FORTHINGPARTS, you're investing in your safety, vehicle longevity, and driving confidence.