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1999 Mercedes-Benz C43 AMG

Check Engine Light and Engine Misfire

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Failed spark plug wires and/or ignition coils can cause intermittent misfires (rough running); the Check Engine Light may also illuminate. Diagnoses of the ignition system will be necessary to determine which components are at fault.

5 Reports

Incorrect Air Delivery and/or Temperature From Climate Control System

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The vacuum manifold for the climate control actuator may develop a leak, This can cause poor or no operation of the air delivery and temperature control flaps.

4 Reports

Excess Free Play in Steering and/or Alignment Issue

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One or more of the following steering linkage components may wear prematurely;  tie rod ends, drag link, or idler arm. Our technicians remind us the wheel alignment should be checked and adjusted if any of these items are replaced.

4 Reports

Engine Oil Leak From PCV Vent Housing and/or Engine Inspection Plate

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An engine Oil leak may develop from the PCV vent housing on the valve cover and/or the inspection plate on the front of the engine.

4 Reports

Harmonic Balancer May Fail and Damage Timing Cover

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The rubber bond in the harmonic balancer can decay, which causes the balancer to move and work its way toward the timing cover. If the balancer comes into contact with the timing cover while the engine is running, it will fracture and damage the cover and potentially other surrounding parts. The harmonic balancer should be inspected at every service.

4 Reports

Fluid Leak From Front of Vehicle

Verified for the Mercedes-Benz C43 AMG

A fluid leak from the front of the vehicle may be a result of a worn steering dampening shock. Our technicians tell us that if a leak is noted from the dampening shock it should be replaced.

4 Reports

"Crank no Start" Due to Failed Crankshaft Position Sensor

Verified for the Mercedes-Benz C43 AMG

The crankshaft position sensor may fail. Symptoms of this are: The engine will crank—but not start—especially when the engine is warm. The car may start again if it is left to cool off, but it may run roughly or have poor performance.

4 Reports

Transmission May Leak Fluid and Damage Control Module

Verified for the Mercedes-Benz C43 AMG

The electrical connector at the automatic transmission may leak fluid. Over time leaking fluid could migrate through the wiring harness and damage the transmission control module. If that happens a new harness and control module may be necessary to correct the problem.

4 Reports

Premature Tire Wear Due to Cracked Lower Control Arm Bushings

Verified for the Mercedes-Benz C43 AMG

Irregular and premature tire wear can be caused by the lower control arm bushings cracking, resulting excessive movement at the control arm pivot point. Ball joints can also wear out prematurely, causing similar tire wear symptoms. I some cases it may be necessary to replace the lower control arm, including bushings & ball joint to correct this concern.

3 Reports

ABS Modulator Failure Due to Dirty Brake Fluid

Verified for the Mercedes-Benz C43 AMG

The anti-lock brake system (ABS) modulator assembly may fail due to dirty brake fluid. Our technicians recommend a complete brake system flush every two years in order to help prevent this problem.

3 Reports

Oil Leaking From Oil Level Sensor

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An engine oil leak may develop from the oil level sensor. Replacement of the leaking sensor will commonly correct this concern.

3 Reports

Poor AC performance Due to Evaporator Temperature Sensor Failure

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The evaporator temperature sensor can fail, causing the AC compressor not to cycle. If the AC compressor does not turn on, the AC system will not blow cold air. If the compressor is stuck on, the air will be very cold at first, before warming up.

3 Reports

Replace air filter when replacing failed mass air flow sensor

Verified for the Mercedes-Benz C43 AMG

The mass air flow sensor tends to fail causing poor fuel economy and Check Engine light illumination. The engine air filter should be replaced when the mass air flow sensor is replaced; a dirty filter can allow debris to damage the new sensor.

3 Reports

Cracked Driveshaft Flex Discs May Cause Driveshaft Movement/Vibration

Verified for the Mercedes-Benz C43 AMG

A vibration felt through the center floor of the vehicle can be caused by cracked and/or shredded driveshaft flex discs, resulting in excessive driveshaft movement. If not repaired, damage to the driveshaft center support bearing, transmission, or differential can occur.

3 Reports

Brake Light Switch Failure May Cause ESP/BAS Warning Lights

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The ESP and BAS warning lights may illuminate due to a failed brake light switch. Replacement of the failed switch should correct this concern.

3 Reports

Squeaking/Worn Brake Pads May Require Rotor Replacement Also

Verified for the Mercedes-Benz C43 AMG

Due to the size and material used on the brakes of these vehicles, the brakes may start to squeak around the 50 percent wear point. The brake rotor surfaces become uneven, causing a lip to form at the outer edge of the rotor. Because of this, the rotors are usually replaced when the pads are worn (pad life varies depending on driving style and terrain).

3 Reports

The Differential May Develop Leaks From the Seals or Cover

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Leaks may develop from the differential cover and/or seals on high mileage or older vehicles. Our technicians recommend a complete reseal of the differential unit if these leaks are addressed.

3 Reports

Poor AC Performance Due to Refrigerant Loss

Verified for the Mercedes-Benz C43 AMG

A refrigerant leak may develop from one or more of the following AC components: AC compressor, hose manifold for the compressor, or the evaporator core. The loss of refrigerant can cause poor AC performance. Our technicians tell us that proper leak diagnoses should be performed in order to determine the cause of any refrigerant loss.

3 Reports

Interior Wood Trim/Dash Pad Crack Due to Age and Sun Exposure

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The interior wood trim and dash pad are likely to crack due to age and sun exposure.

3 Reports

Trunk Lid Does Not Stay Opened Duo to Broken Trunk Spring

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Trunk springs can break causing the trunk lid to fall back down when opened.

3 Reports

Brake Light May Not Operate Due to Failed Rear Tail Light Housing

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A rear tail light housing can fail causing the brake light on the affected side to be inoperative. Replacing the failed housing is commonly required to correct this issue.

3 Reports
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