Mercedes AdBlue fluid for Diesel models

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Many Mercedes-Benz diesel cars, such as E220, C220, S350, G350, ML350, and ML250, are equipped with BlueTec technology and use AdBlue® Diesel Exhaust Fluid (DEF). The fluid is sprayed into the exhaust gases, lowering NOx emissions. If you see an AdBlue Warning light on your instrument cluster, it may be time to …

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Mercedes Throttle Position Sensor Problem

mercedes bad throttle position sensor

The Mercedes-Benz throttle body or throttle position sensor found on C-Class, E-Class, S-Class, CLK-Class, and SLK-Class may fail to cause idle issues, no idle, or poor acceleration. Symptoms of a defective Mercedes throttle body or throttle position sensor include: Rough idle Mercedes won’t idle High idle Idle at 2000 RPM …

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Mercedes EZS EIS Ignition Switch Problem, Cause, Solution

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Mercedes-Benz owners may face a problem when the key no longer turns in the ignition. This issue is often caused by a defective key, a bad shifter module, a failed Electronic Ignition Switch (EIS), the EIS-EZS, or a bad steering lock module (ESL). This problem can affect various Mercedes-Benz models, …

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Mercedes Seat Belt Locked after Accident, Fix

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After an accident, your Mercedes-Benz seat belt locks up and will no longer retract. This is due to a blown pre-tensioner. To fix this problem, you either need to replace the seat belt that has the blown pre-tensioner, which can be expensive, or another less expensive solution is to repair …

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Mercedes Crankshaft Pulley / Harmonic Balancer DIY

This tutorial covers common harmonic balancer/crankshaft pulley problems and provides instructions on how to replace them. This is a common problem with Mercedes-Benz vehicles equipped with M112 and M112 engines. These two engines are installed on many Mercedes-Benz models manufactured between 1995 and 2005, including E-Class, C-Class, S-Class, and ML-Class. …

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