Mercedes S350 Starter Relay Parts
Showing 6 out of 6 part(s) found in our catalog.
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Based on industry averages you can expect to pay between $3.49 and $23.29 for a Mercedes S350 starter relay.
Where Is The Mercedes S350 Starter Relay Located?
When you’re hunting for the Mercedes S350 starter relay, pop the hood and look at the fuse and relay box, usually along the driver’s side fender. Lift the lid, and inside you'll spot a diagram that maps out each relay and fuse. If you don’t see the starter relay right away, check that diagram or flip through your owner’s manual. Mercedes sometimes shifts things around by model year, so the exact slot can be different. Take your time and be careful pulling the relay so you don’t jostle anything next to it.
What Are The Symptoms Of A Bad Mercedes S350 Starter Relay?
When a Mercedes S350 starter relay starts to fail, you might notice the car won’t crank, even with fresh battery power. Turn the key and maybe you get a single loud click from under the hood, but the engine doesn’t turn over. Sometimes, the car fires up one moment and won’t respond the next. You’ll see dash lights as normal, but nothing happens when you try to start. Trouble like this comes from corroded or worn contacts inside the relay. It’s one of the first things to check if your car leaves you stranded.
How Do I Test A Mercedes S350 Starter Relay?
To test a Mercedes S350 starter relay, first disconnect the battery for safety. Find the relay in the box and ease it out. Take a basic multimeter and check the relay’s terminals against the pin diagram for continuity. You can also swap the relay with another of the same type, maybe from the horn or rear defroster, just to see if your problem follows the relay. If the starter fires up, you’ve likely pinpointed your issue. No special skills needed—just a bit of patience and the right tools.
How Much Does It Cost To Replace A Mercedes S350 Starter Relay?
Swapping out a Mercedes S350 starter relay won’t empty your wallet. Parts usually hover between $30 and $60—sometimes even less with online deals. If you don’t want to replace it yourself, local repair shops may charge $75 to $150 for labor depending on your area. Lots of drivers just install a new relay at home with basic tools and save the extra cash. Either way, it’s a small fix compared to most other Mercedes repairs.
Can A Bad Mercedes S350 Starter Relay Drain The Battery?
It’s not common, but a stuck Mercedes S350 starter relay can drain your battery. If it stays closed, it keeps feeding power to the starter even after you turn the car off. That slow drain can kill a fresh battery overnight. If you keep finding your battery dead and also have trouble starting, check the relay for signs of sticking or internal failure. Swapping in a new relay often solves both issues in one go.
Looking For An Affordable Mercedes S350 Starter Relay?
Keeping your Mercedes S350 in shape shouldn’t be a hassle—or cost more than it should. At AutohausAZ, we offer quality starter relays at prices that make sense. Our parts are reliable, and we get them to you fast, because no one wants to wait when their car is down. Ordering is straightforward and if something doesn’t fit, returning it is easy. We know the ropes—whether you handle all your own repairs or this is your first time dealing with a relay. Next time you need a starter relay for your S350, check us out for a deal that won't let you down. We’re here to help you stay ready for the next drive.
