2004-2008 Crossfire Wiper Motor: Diagnosis, Interchange & Replacement Guide

Symptoms of a Failing 2004-2008 Crossfire Wiper Motor

A failing wiper motor can show several signs before it stops working completely. Diagnosing the issue correctly can save you from replacing the wrong parts. Be aware that some of these symptoms can also be caused by a faulty multifunction (stalk) switch or Body Control Module (BCM).

• Wipers Don't Move at All: This is the most obvious symptom. If you hear a humming or buzzing sound from the cowl area when you activate the wipers, the motor is receiving power but is likely seized internally. If there is no sound, the problem could be the motor, a blown fuse, or a wiring issue.
• Slow or Erratic Wiper Speed: The wipers may move much slower than usual, or their speed may change unpredictably. This often points to an aging motor that is losing power or internal gears that are worn and binding.
• Wipers Won't Park Correctly: When you turn the wipers off, they stop in the middle of the windshield instead of returning to the bottom. This is a classic sign of a failed park switch inside the wiper motor assembly.
• Wipers Only Work on One Speed: If the wipers only function on the high-speed setting but not on low or intermittent, it often points to a problem with the motor's internal circuitry or the BCM.
• Wipers Run Continuously or Randomly: In some cases, the wipers may turn on by themselves or fail to turn off. Forum members have traced a similar issue to a poorly seated electrical connector at the Body Control Module (BCM), which can mimic a motor failure.

Known Issues, Recalls, and TSBs

As of this writing, there are no specific NHTSA safety recalls or Technical Service Bulletins (TSBs) for the windshield wiper motor on the 2004-2008 Chrysler Crossfire. The only recall for these model years typically relates to the airbag inflator.

The Mercedes-Benz Connection

The Chrysler Crossfire is based on the Mercedes-Benz R170 platform, which includes the SLK230 and SLK320. As a result, it shares many parts, including the entire wiper motor and linkage assembly. This is a major advantage for owners, as the Mercedes-badged part is often more readily available on the used market.

Buying a Used 2004-2008 Crossfire Wiper Motor

Given the high cost of a new OEM motor, a used, recycled OEM unit is an excellent value. The part is reliable, and because it's shared with the popular Mercedes R170, good-quality used examples are plentiful.

Why a Used OEM Motor is a Smart Choice

• Guaranteed Fit: An original part from a Crossfire or R170 SLK will bolt in perfectly and connect to the factory wiring without modification.
• Quality and Durability: OEM parts are built to a higher quality standard than many low-cost aftermarket alternatives. The original motor in your car lasted for years; a used OEM replacement is likely to do the same.
• Cost Savings: A used OEM wiper motor assembly can be purchased for a fraction of the price of a new one from the dealer.

Key Inspection Points for a Used Part

1. Verify the Part Number: Confirm the part is from a 2004-2008 Crossfire or a 1997-2004 Mercedes-Benz R170 SLK. Look for part numbers like 05097935AA (Chrysler) or A1708202542 (Mercedes).
2. Inspect the Electrical Connector: Check the pins in the electrical connector for any signs of corrosion, burning, or damage. This is the most critical inspection point.
3. Check the Linkage Pivots: If you are buying the complete assembly (motor and linkage), move the arms by hand. They should move smoothly without excessive play or binding. Rust at the pivot points can be a sign of a part that was exposed to water.
4. Look for Physical Damage: Inspect the motor housing for cracks or other damage that could allow water to get inside.

Replacement Overview

Replacing the wiper motor is a straightforward job for a DIY mechanic with basic tools. It is typically sold as a complete assembly with the linkage attached.

• Difficulty: 2.5 out of 5
• Estimated Time: 1-1.5 hours
• Tools Needed: Ratchet and sockets (10mm, 13mm), screwdrivers, trim removal tools, and possibly a wiper arm puller.

High-Level Steps:

1. Open the hood and mark the position of the wiper blades on the windshield with painter's tape.
2. Remove the plastic caps at the base of the wiper arms and undo the 13mm nuts.
3. Lift the wiper arms off their splined posts. They can be stubborn; gently wiggling them or using a battery terminal puller or a dedicated wiper arm puller can help.
4. Remove the plastic cowl cover at the base of the windshield. This is usually held on by several clips and screws.
5. Locate the wiper motor and linkage assembly. Disconnect the motor's electrical harness.
6. Unbolt the entire assembly from the vehicle's firewall (typically three 10mm bolts).
7. Install the new assembly, reconnect the electrical connector, and reinstall the cowl and wiper arms in the reverse order. Test operation before fully tightening the wiper arm nuts.

Cost Comparison

Prices for the Crossfire wiper motor can vary significantly. A used OEM part offers the best balance of quality and value.

Part Numbers and Specifications

This motor is shared between the Chrysler Crossfire and the Mercedes-Benz SLK-Class (R170). Part numbers are often interchangeable.

• Chrysler / Mopar Part Numbers: 05097935AA, 5097935AA
• Mercedes-Benz Part Numbers: 1708200242, 1708202542, A1708200112, A1708200242, A1708202542

Frequently Asked Questions (FAQ)