Audi 100 Starter Relay Parts

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Audi 100
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Electrical, Lighting and Body
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Starter Relay
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1989, 1990, 1991, 1992, 1993, 1994 Audi 100, 100 Quattro
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$10.99
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$11.45
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$44.67
1989, 1990, 1991, 1992, 1993, 1994 Audi 100, 100 Quattro
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$6.39
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$6.66
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$88.56
1989, 1990, 1991, 1992, 1993, 1994 Audi 100, 100 Quattro
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$10.69
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$11.14
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$32.83

The average price of a Audi 100 starter relay is between $6.39 and $10.99.

Where Is The Audi 100 Starter Relay Located?

You’ll usually find the Audi 100 starter relay tucked up under the dash, to the left of the steering column in the driver’s footwell. Some years, Audi moved it into the main fuse box under the hood, next to the battery. There’s no one-size-fits-all answer because the location can shift a little depending on the model year. To nail it down, pop the hood and check the fuse box cover—there’s often a map or some markings for relays and fuses. If you don’t see one labeled “starter,” check in under the dash. Sometimes, a kick panel needs to come off to see what’s behind. If you’re still not sure, the owner’s manual will show you where to look, or a quick search for a starter relay diagram for your year can help. Some folks also pull the old relay and look for the part number to match it up with replacements.

What Are The Symptoms Of A Faulty Audi 100 Starter Relay?

A bad Audi 100 starter relay causes all sorts of headaches. You might turn the key and nothing happens—no click, no crank, just silence. Sometimes you get the dash lights but no action from the engine. Now and then, there’s a soft click but it still won’t start. Some people even find the starter motor keeps running after the engine catches, which can be risky if you don’t catch it quickly. Another sign is random starting: works fine one day, then refuses the next. Hot starts often make things worse as worn relays can act up more with heat. All of these lead right back to the relay being weak or sticking inside.

How Do You Test The Audi 100 Starter Relay?

Here’s a quick way to check your Audi 100 starter relay: When you turn the key, listen close for that crisp click from the relay. No sound? That’s a warning sign. If you have a test light or a multimeter, see if power reaches the relay when the key goes to “start.” If it lights up or reads voltage, the circuit is live. Try swapping the relay with another from your fuse box if it matches—that sometimes gives an instant answer. If the starter works with the new relay, you’ve nailed the problem. Make sure your battery is strong and the cables are tight; weak batteries can trick you into thinking the relay’s at fault.

Can The Audi 100 Starter Relay Cause Intermittent Starting Problems?

Yes, a bad Audi 100 starter relay often shows up as on-again, off-again starting issues. The car might fire up fine fifteen times, then nothing the next morning. Sometimes, a sharp tap to the relay or fuse box brings it back to life—clear proof that something’s loose or worn out inside. You could notice the problem more when the engine’s hot or if it’s a humid day. Over time, these glitches only get worse. If the battery and starter are solid, the relay is where most people look first.

How Do You Replace An Audi 100 Starter Relay?

Swapping out the Audi 100 starter relay is a job that doesn’t take much effort or time. Start by turning off the car and removing the battery cable for safety. Find the relay—either in the dash or fuse box—then pull it out straight from its socket. Have the new relay ready to go, making sure the pins line up the same way. Push it in snug, hook the battery back up, and give the ignition a try. If the car starts fine, your job’s done. If not, you might need to keep digging elsewhere in the system.

Why Choose AutohausAZ For Your Audi 100 Starter Relay?

At AutohausAZ, we know how frustrating it feels when your Audi 100 refuses to start. That's why we make it easy to find the right starter relay without draining your wallet. Our catalog covers nearly every year and model, and our prices are usually way below the dealership. You won’t have to guess with us—everything is organized and simple to search. The parts are solid quality, and shipping is fast enough that you won't be stuck waiting days for what you need. We keep returns simple, so if you choose the wrong relay, swapping it out is no hassle. Our team helps you pick the right part if you're unsure. The goal is simple: keep you moving, stress-free and for less money than you’d expect. That’s how we take care of Audi drivers every day.