Audi Quattro Ignition Control Unit Parts

Showing 4 out of 4 part(s) found in our catalog.

Narrow Down Your Search By...
Filter search results specific to your vehicle.
Keyword
Keyword
Audi Quattro
Category
Ignition
Subcategory
Ignition Control Module
Subcategory
Can't Find What You Need?
Mon-Fri 8-4 MST/PST (Arizona Time)
Contact Us
Sort By:
With 7 pin connector.
1983, 1984, 1985 Audi Quattro
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$30.99
Reg
$32.28
List
$541.09
Please verify Audi/VW (4D0905351) or Bosch (0227100211) part number on existing unit prior to ordering. Some variations exist. 1 per car.
Audi A4 Quattro, A4, A8 Quattro, A8
VW Jetta, Passat, Golf, Beetle
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$43.99
Reg
$45.82
List
$321.67
Audi A6 Quattro, S4, S6, Allroad Quattro
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$39.99
Reg
$41.66
List
$243.33
OEM
Please verify Audi/VW part number on existing unit prior to ordering; some variations exist. 1 per car.
Audi A4 Quattro, A4
Ships Tomorrow
Ships Tomorrow Information Icon
Leaves closest warehouse tomorrow.
$39.99
Reg
$41.66
List
$348.33

Audi Quattro ignition control unit typically cost between $30.99 and $43.99.

What Are Common Signs Of A Faulty Audi Quattro Ignition Control Unit?

When the Audi Quattro ignition control unit starts to fail, the car tells you in a few different ways. You might notice the engine starts rough and feels uneven. Sometimes, it runs fine cold, but after warming up, misfires or stumbling kicks in. The engine could even stall out of nowhere while cruising, and sometimes, it just won’t start at all, even though the starter cranks and lights work. Many folks first swap in new plugs or coils, hoping for a quick fix, thinking it's the usual suspects. But if those don't solve things, eyes turn toward the ignition control unit. Getting ahead of these clues matters. Catching them early saves hassle and wasted money on unneeded parts.

How Do You Test The Audi Quattro Ignition Control Unit?

To test the Audi Quattro ignition control unit, you’ll need a multimeter and a solid wiring diagram for your car. Start by making sure the control unit is getting both power and ground with the key on. Next, check the signal path to see if the control unit is talking right with the coil and ECU—a diode test or voltage check can help here. If the readings swing out of range, or you notice the voltage act strange, the ignition control unit could be on its way out. If you have access to a spare working unit, swapping it in can take the guesswork out of it.

What Causes The Audi Quattro Ignition Control Unit To Fail?

Usually, the Audi Quattro ignition control unit gives up because of heat, vibration, or plain old age—the inside parts can’t deal with it forever. Loose, corroded connectors also start trouble, with the car giving you the classic on-again, off-again fuss. Electrical surges from a bad alternator or a jumper cable mix-up can fry it in a heartbeat. Sometimes water sneaks inside from a bad seal and shorts things out. Keeping the connectors clean and tight pays off, keeping the unit working longer.

Can You Repair An Audi Quattro Ignition Control Unit Or Is Replacement Necessary?

Repairing a Audi Quattro ignition control unit isn’t always possible, but there are times when someone skilled with a soldering iron can save the day—particularly if the problem’s a cracked joint or light corrosion. Most times, though, the damage is deep, inside the circuits, sealed up for good. That’s when replacing the ignition control unit is the safer plan. Picking up a new or solid remanufactured unit gives you peace of mind. Used ones from the junkyard can work, but it’s a gamble if you can’t vouch for their history.

How Do You Install A New Audi Quattro Ignition Control Unit?

Putting in a new Audi Quattro ignition control unit isn’t wild, but you’ll want to go step by step. Disconnect the battery first. Take out the old unit—it’s normally held by some screws or clips—and disconnect its wiring harness. Before you put in the new one, check and clean the connectors to make sure they’re solid. Pop the new unit in, bolt or snap it down, and plug everything back. Hook up the battery again, then start her up and see how she runs. On some models, you might need to clear old error codes with a scan tool, just to finish the job right.

How Can You Save On An Audi Quattro Ignition Control Unit?

At AutohausAZ, we get why you want to keep your Audi Quattro running strong. That’s why our prices on the ignition control unit run fair, without the steep dealership markup. Shopping with us is straightforward—our site’s easy, shipping moves quick, and returns aren’t a headache. You’ll get quality parts and good value, plain and simple. Keep your Quattro rolling and stash the savings for your next road trip.