A Mercedes GLA that drops into neutral while driving is usually a slipping transmission: it cannot hold the gear because the fluid is low or burnt, a shift solenoid is faulty, or the clutch plates, bands or gears are worn. To fix it, check the transmission fluid level and condition first, read the fault codes with an …

The seven most common cold weather problems on a Mercedes GLA are frozen wipers, failed spark plugs, a weak or dead battery, an engine that will not start, low tire pressure, salt corrosion and frozen locks. To get the car going in sub-zero temperatures, crank for no more than 10 seconds at a time, wait a minute or two …

When the reverse camera on a Mercedes GLA stops working, the cause is usually small: a dirty lens, a frayed wire or loose connector, a blown fuse, or a display that is not getting power. Check them in that order. Only replace the camera once the display, wiring and fuses are ruled out. The GLA's camera sits by the …

If your diesel Mercedes-Benz Sprinter starts slowly, will not start in the cold, blows white smoke or lacks power, check the glow plugs and the glow plug control module (relay). Test the circuit with a test light and an ohmmeter, clean fouled plugs with brake parts cleaner, and replace worn plugs. Plan on new glow …

The most common Mercedes-Benz Sprinter automatic transmission issues are sluggish acceleration, gears that won't shift or that jump, harsh engagement, fluid leaks, slipping, a burning smell, a Check Engine light and limp mode. Most of them trace back to old transmission fluid, a failing shift solenoid or speed sensor, …

When the AdBlue (DEF) heater element fails on a Mercedes-Benz Sprinter, the fix is to replace the heater element. It is not repairable. Confirm it first: top up the AdBlue, read the fault codes (typically P20B9, P20BD, P20BE, P20B8 or P20E8), and check the NOx sensor values, the pump and the injector. Then drop the DEF …

A clogged DPF on a Mercedes-Benz Sprinter is fixed in one of three ways: a regeneration drive that burns the soot off, a DPF cleaning additive in the fuel tank, or a professional clean when the van is already in limp mode. The Diesel Particulate Filter (DPF) on a diesel Mercedes Benz Sprinter traps the soot (diesel …

If your OBD2 scanner won't turn on or won't read OBD (on-board diagnostic) codes, the cause is usually the car, not the scanner. Check these in order: the fuse that powers the OBD socket (often shared with the 12-volt socket or cigarette lighter), the ignition in the "run" position, about 12 volts between pin …

When the blower in a Mercedes Sprinter van stops working, the cause is almost always one of four things: a blown fuse, a damaged blower resistor, a bad ground connection on the motor, or a failed speed control module (or the motor itself). Check them in that order with a test light or multimeter, starting at the fuse …

When the radio in a Mercedes Sprinter van stops working, the most likely cause is a blown radio fuse, followed by loose or damaged wiring behind the unit or to the speakers. Check the fuse in the panel under the steering column first, then the wiring, speakers and antenna. Only if the radio still won't power on is the …