Mercedes-Benz 500E Repair and Maintenance - Get an online auto repair estimate for your Mercedes-Benz 500E
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Mercedes-Benz 500E Repair and Maintenance
Mercedes-Benz 500E Model Years
Mercedes-Benz 500E Questions and Answers
scobbs, 1993 Mercedes-Benz 500E, Miami, FL
i have a e500 merecedes benz 2004 riding too low i replace the hydralic air compressor and the relay the car is still ride too low. what else can i try? i need help in a hurry?
Mercedes-Benz 500E Problems
| Brakes |
- Due to the size and materials of the brakes on these vehicles, the brakes 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).
- Brake fluid should be flushed every two years to prevent premature anti-lock brake system (ABS) failure.
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| Engine |
- Oil leaks develop from the head gasket and timing cover gasket; these leaks should be repaired before the engine oil and coolant intermix.
- Radiators break due to degradation of the plastic tanks and fittings.
- Older vehicles should have the cooling system serviced even if the mileage is low. The hoses can look good on the outside, but the rubber can degrade and erode on the inside. If not carefully checked, the hoses can burst at any time.
- Oil feed tubes break and fall into the crankcase (engine) and the tappet becomes noisy (ticking), resulting in degraded idle quality. Our technicians recommend replacing all of the tubes at the same time, broken or not.
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| Exhaust & Emissions |
- Ports in the cylinder head related to the emissions air injection and EGR systems can clog; the cylinder head should be removed and the ports cleaned.
- A faulty mass air flow (MAF) sensor can cause erratic/rough engine operation and fuel economy issues. Since this sensor measures the actual amount of air entering the motor, when it fails, the engine control module (ECM) takes the wrong information and delivers incorrect volumes of fuel to the cylinders.
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| Suspension & Steering |
- Irregular and premature tire wear can be caused by the lower control arm bushings cracking and causing excessive movement at the control arm pivot point. Ball joints can also wear out prematurely, causing similar tire wear symptoms.
- The tie rod ends, drag link, and idler arm in the linkage of the steering system can wear out.
- There is a steering dampening shock that will leak fluid when it goes bad.
- A knocking noise from the front end can be caused by cracked strut tower bushings.
- Vehicles with level control that ride harshly in the rear (no give in the suspension, like you are riding on a brick) may have bad dampening actuators. The actuators should be replaced in pairs.
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| Drive Train |
- A vibration felt through the center floor of the vehicle can be caused by driveshaft flex discs, which crack and shred, causing excessive driveshaft movement. Not repairing these can cause damage to the driveshaft center support bearing, or, in the worst case scenario, damage to the transmission or differential.
- High mileage vehicles can leak from the transmission oil seals.
- High mileage or older vehicles develop leaks at the differential seals and cover; the whole unit needs to be resealed to repair the leaks.
- The bushings for the shifter lever wear out to the point where they break and fall out. This causes excessive movement (loose feel) in the shifter lever and a clanging-type noise when changing gears.
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| Electrical & Lights |
- The insulation degrades on the engine wiring harnesses because the insulating material falls off of the wires and leaves the conductors exposed. This can cause many problems depending on which wires are exposed and what they touch.
- Throttle valves can suffer electrical failure.
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| Heating & Air Conditioning |
- Due to wear of mechanical parts in the control head, the buttons on temperature control assemblies work erratically or not at all. These control heads need to be replaced for this concern or when the display screen starts to fade out.
- Due to the vacuum actuators going bad, temperature blend doors in the HVAC system may stop working.
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