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Mercedes Timing Chain IssuesJuly 27th 2022

Mercedes information on timing chain issues:
  • Drivability issues: Problems during acceleration or at idle can indicate that your camshaft position sensor isn’t detecting the position of your camshaft correctly. You may experience hesitation, stumbling, vibrations or stalling.
  • Problems starting your vehicle: Your vehicle may take a long time to start or not start at all if the camshaft position sensor is damaged. This problem tends to get worse as time goes on, to the point that your vehicle won’t start at all.
  • Check engine light: There can be many reasons that your check engine light comes on, but a faulty camshaft position sensor is a common cause. As your sensor drifts out of range, your ECU detects a malfunction and turns on the dashboard warning light.

Mercedes-Benz V6 and V8 engines had timing chain problems caused by balance shaft and idler gear failures. Mercedes produced certain models with defective gears in their balance shafts (M272 engines) or with defective idle gears ( M273 engines). These faulty gears wear out prematurely, excessively, and without warning, causing the vehicle to malfunction, the ‘check engine light’ to remain illuminated, and the vehicle to misfire or stop driving. A lawsuit was filed against Mercedes-Benz.

Timing chain failures can cause catastrophic engine damage. Early signs of this problem are the check engine light and engine noise. If the timing chain fails, the pistons can hit the valves and cause severe damage to the engine. Engines with the balance shaft worn sprocket were Mercedes-Benz 350 models (Example: E350 C350 etc. ) that were equipped with the M272 engine. Mercedes-Benz engine is typically labeled as 450 models that have the V8 M273 engine had problems with worn guide idler gear. The parts themselves are not very expensive, but they are very costly to replace.

Please check your Vin number to see if the car you own is part of the issues with the models listed.

Please call Perfection Auto Works Inc. ( 520-323-8650 ) if you need additional information.  Perfection Auto Works is where you will find the best Tucson Mercedes Benz Service.

Mercedes Car Care TipsJuly 5th 2022

Perfection Auto Works is the first place you want to go for all of your Mercedes repairs, but did you know we also can give advice on other ways to care for your car? Read More »

Mercedes Timing Chain Repair and ReplacementMay 19th 2022

Mercedes Benz has been using timing chains in their engines since the 1950’s.  The purpose of the timing chain is to synchronize the camshaft and crankshaft rotation so that the engine’s valves open and close at the correct time.  This is how your engine manages the combustion and exhaust process.  Without it, your engine will not run.

Mercedes has chosen to use timing chains instead of timing belts because they are more durable than the rubber alternative. But like all moving parts, they eventually wear out and need replacement. Read More »

Springtime Mercedes Benz Maintenance TipsApril 23rd 2022

With the arrival of warm weather, it’s time to prepare your Mercedes Benz for Spring.  Tucson may not have extreme cold like other areas of the country but regular service to your car is just as important.  Between spring breaks, family events, graduations, and date nights, the warm weather is a perfect excuse to make use of your vehicle. Perfection Auto Works can ensure that your Mercedes is in optimal mechanical condition. Read More »

Mercedes Benz Schedule A ServiceFebruary 6th 2022

About Service A

Mercedes Benz has grouped the types of maintenance your car needs into two service groups. They are referred to as Service A and Service B. Each service is the chance to catch any repairs for your Mercedes before the issue becomes serious. Service A is the more basic service and B is more extensive. The computer in your Mercedes dashboard will remind you of Service A at 10,000 miles and every subsequent 20,000 mile interval.

Service A Includes

Change engine oil and filter
Check the warning and indicator lamps and horn for functionality
Check the windshield/headlamp wiper and washer systems for functionality and fluid levels
Ensure that seat belts are functioning correctly
Inspect tires and check tire pressure (including the spare tire)
Inspect brake pad thickness and disc condition
Check and correct all fluid levels
Reset your vehicle’s Flexible Service System (FSS) counter

Cabin filters

In all SLK, CLK, C-Class, and E-Class models, the interior cabin dust filter should be replaced.

Perfection Auto Works

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