The days of the full-service gas station are gone, and modern cars can go 30,000 miles or more without a tune-up. So it’s up to YOU to check the little things before they become big, expensive problems by checking under the hood of your Mercedes on a regular basis.
Following these simple monthly checks will alert you to potential problems that can be dealt with before you get stranded or end up paying for expensive auto repairs.
Tuneup
An old-fashioned maintenance term that’s nearly non-existent today. With electronic ignition and fuel injection came computers that took over control of engine settings. Early versions allowed for some tinkering, but today’s engines require advanced equipment and training.
You can, however, replace normal maintenance parts and still see improved engine performance from your Mercedes. Here are common maintenance parts you can replace to significantly increase performance and reduce major problems.
Engine Repairs
Oil pressure light flickering? Engine knock? Both? Major repair problem or minor annoyance? Either way, you should always quickly investigate the source before it becomes an even bigger problem.
Oil pressure – or more precisely the lack of it – in certain parts of your Mercedes’ engine can become a major repair nightmare. All engines lose a certain amount of oil pressure over time as normal wear increases bearing clearances. But unusually low oil pressure in an engine, regardless of mileage, is often an indication that something is seriously wrong and requires immediate repairs.
That “tappet” noise may be only one sticking lifter but it may also indicate an oil flow problem that will eventually cause damage to at least one valve.
A flickering oil light is more difficult to troubleshoot if your engine is not obviously in need of major repair work. Bring it in to Malubu Motors and let us take a look at it. We have the Certified Master Mechanics to make sure your Mercedes Benz is running in tip-top condition.
Modern engines with hydraulic lifters, tight tolerance bearings and miniature oil filters require conscientious monitoring of oil pressure.
The following diagnostic tips (excerpted from “Troubleshooting Low Oil Pressure”, Underhood Service, 10/97) will help you determine whether you have a major repair problem or just a minor annoyance.
Brakes
Your brakes keep your family safe. Mercedes brake parts and repairs – expensive? Yes! Mercedes brake rotors, unlike domestics, are built with minimal thicknesses to save weight – meaning they can’t be “turned”; they must be replaced. Bring it in to Malubu Motors and let us take a look at it. We have the Certified Master Mechanics to make sure your Mercedes Benz is running in tip-top condition.
Mercedes brake rotors are also more sensitive to warping from heat, and overheated brakes are the second most common cause of failure (first is wear-and-tear).
Visually inspect brakes’ condition at least every six months. Here are some things to look for:
Mercedes Brake Rotors (discs) should be inspected all the way around the surface and on both sides for any concentric scoring (grooves) or obvious defects. If defects are found, replace your rotors immediately. Any rotor discoloration may be a sign of overheating and an inspection by an Mercedes brake repair professional is needed.
Mercedes Brake Pads will normally match rotor scoring but should also be inspected for uneven wear, breakage or cracking on the friction surface. Again, if defects are found, replace the pads immediately. Many cars also have brake pad sensors to warn of pad wear. If your Mercedes uses sensors, replace these at the same time as your pads.
Mercedes Brake Drums (if equipped) should also be inspected on a regular basis. Check for the same types of flaws as noted above. The drums should not have excessive grooves or have a deep “trough” dug into them where the shoes ride.
Mercedes Brake Shoes (if equipped) should be worn evenly and have no rivets protruding to the friction surface.
Electrical System
Today’s auto electrical systems are getting more intricate and are stressing the limits of current technology but they are basically the same design as 30 years ago. What can today’s do-it-yourselfer do to keep from being electrically-challenged in the middle of nowhere? A quick overview of your Mercedes’ electrical system would be a good start.
Bring it in to Laguna Motor Werks and let us take a look at it. We will make sure your Mercedes Benz is running in tip-top condition.