OEM Mercedes-Benz 560 SEC Parts & Accessories

What are Some Common Problems with Mercedes-Benz 560 SEC?

Your 560 SEC is a luxury car unlike any other, quintessentially Mercedes-Benz. It stands out not only in the Mercedes-Benz Series 126 (W126) line but also among many cars from the second-generation Mercedes-Benz S-Class. That means, whether it's an original from 1986 or a restoration from the model's final year, 1991, it's one well worth the investment to keep in top shape.

Good thing you came to us for advice on how to stay on top of that. Here's a few issues you might run into with 560 SEC, how to handle them, and what repairs might run you.

Failed Fuel Pumps

560 SEC models from 1990 and 1991, those with 140,000 miles or more on the odometer, have a known issue where their engines will crank, but they won't start. The cause: a faulty fuel pump, if not a bad fuel pump relay. You'll have to replace whatever the problem is. It can cost as little as $400, but usually, it'll run you between $1,100 and $1,250.

Bad AC Parts

If the heater in your 560 SEC isn't working -- and the car's got 160,000 miles or more clocked -- most likely, it's a case of blower motor failure. Other causes include motor defects, a faulty switch, and a blown motor resistor. Average replacement costs for heater blowers usually run $120 to $150, but more likely, since the car's a Mercedes-Benz, you'll end up paying between $550 and $575.

Ignition Failure

The 1990 and 1991 model years were known for bad ignitions -- specifically, lock and tumbler trouble. You see it most often in 560 SEC models with around 200,000 miles on the clock, and the cause is almost always just plain wear from age. You'll have to replace the ignition lock cylinder, after which you should be good to go. The average cost for that can be as low as between $240 and $290, but with Mercedes-Benz cars, it can sometimes be more.

Have other problems? Not sure what to do about them? Ask the techs at a Mercedes-Benz dealer or an authorized service center; they'll be happy to help.

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