Mercedes-Benz Error Code P1444: How to Fix It

Q: What causes Mercedes P1444 error code?

P1444 is typically caused by a faulty camshaft adjuster solenoid, damaged wiring harness, corroded electrical connections, or low engine oil affecting the hydraulic system that operates the adjuster.

Q: Can I drive with P1444 code?

You can drive short distances at low speeds, but avoid highway driving or high RPMs. The engine may run rough, have reduced power, or experience timing issues that could cause long-term damage if not addressed promptly.

Q: How much does it cost to fix P1444 on Mercedes?

Diagnostic fees range from $100-200. If it's just wiring issues, repairs cost $150-400. Camshaft adjuster replacement typically costs $800-1500 including labor, depending on your Mercedes model and local shop rates.

Q: Is P1444 covered under Mercedes warranty?

P1444 may be covered under powertrain warranty if your vehicle is under 4 years/50,000 miles. Extended warranties vary by coverage. Contact your Mercedes dealer to verify warranty status for timing chain components.

Q: How do I prevent P1444 from happening again?

Use only Mercedes-approved engine oil, change oil every 10,000 miles or as specified, avoid extended high-RPM driving, and address any oil leaks promptly. Regular maintenance helps prevent hydraulic system issues that affect camshaft adjusters.

Abstract

Mercedes-Benz error code P1444 indicates that the camshaft adjuster on bank 2 is receiving insufficient electrical current. This timing chain component controls valve timing for optimal engine performance, and when it fails, you may experience rough idling, reduced power, or engine knock.