Wiring Harness for Electric Coolant Pump – 2019 Mercedes-Benz CLS-Class

August 16, 2019 NHTSA CAMPAIGN NUMBER: 19V605000

Coolant Pump Electrical Line May Chafe

A malfunctioning engine coolant pump can increase coolant temperatures, possibly leading to an engine stall. Deactivation of the 48V on-board electrical system can cause the vehicle to not restart after using the ECO start/stop function or “Glide” mode. Either of these scenarios can increase the risk of a crash.

 

NHTSA Campaign Number: 19V605

Manufacturer Mercedes-Benz USA, LLC.

Components ENGINE AND ENGINE COOLING, ELECTRICAL SYSTEM

Potential Number of Units Affected 3,257

 

Summary

Mercedes-Benz USA, LLC. (MBUSA) is recalling certain 2019 CLS 450 Coupe and CLS 450 Coupe 4MATIC vehicles equipped with 6-cylinder gasoline engines. The electrical line that supplies power to the engine coolant pump may contact the engine fan and chafe, possibly causing a malfunction of the coolant pump or a deactivation of the 48V on-board electrical system.

 

Remedy

MBUSA will notify owners, and dealers will inspect the coolant pump electrical line for damage, repairing it and rerouting it as necessary, free of charge. The recall is expected to begin October 15, 2019. Owners may contact MBUSA customer service at 1-800-367-6372.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Mercedes-Benz has a Recall


IMPORTANT RECALL CAMPAIGN INFORMATION

TO: Mercedes-Benz Dealer Principals, General Managers, Sales Managers, Service Managers, Parts Managers FROM:  Gregory Gunther, Department Manager, Vehicle Compliance and Analysis, Engineering Services
RE:  Recall Campaign Initial Notification
Wiring Harness for Electric Coolant Pump
MY19 CLS-Class (257 Platform)
DATE: August 23, 2019

IMPORTANT RECALL CAMPAIGN INFORMATION

Please see the attached documents related to the campaign listed above.

 

Please note that all customer inquiries should be directed to the Customer Assistance Center at 1-800-FORMERCEDES.

Sincerely,

Gregory Gunther

Department Manager, Vehicle Compliance & Analysis


Campaign No. : NHTSA ID Campaign Desc. : Wiring Harness for Electric Coolant Pump
TBA 19V605 PEND 257 WG HRNS
This is to notify you of a new Recall Campaign regarding the wiring harness for the electric coolant pump on 3,257 Model Year (“MY”) 2019 CLS-Class (257 platform) vehicles. The recall campaign will be visible on the www.safercar.gov website and may generate questions from customers. Affected VINs will be flagged in VMI as “PENDING” on August 23, 2019.
Background
Issue Daimler AG (“DAG”), the manufacturer of Mercedes-Benz vehicles, has determined that on certain Model Year (“MY”) 2019 CLS-Class vehicles (257 platform) equipped with a 6-cylinder gasoline engine (M256), the electric power supply for the engine coolant pump might contact the engine fan and chafe.  Chafing of the electric power supply for the engine coolant pump could lead to a malfunction of the engine coolant pump and/or a deactivation of the 48V on-board electrical system. If the engine coolant pump malfunctions, the engine coolant temperature might increase, potentially leading to an engine stall.  If the 48V on-board electrical system becomes deactivated while the engine is running, the vehicle can continue to be driven. However, a restart of the engine would not be possible should the engine be switched off by the ECO start/stop function or the “Glide” mode functionality. In both cases, the vehicle propulsion would be lost, increasing the risk of a crash.
What We’re Doing MBUSA will conduct a voluntary recall.  An authorized Mercedes-Benz dealer will check for damage on the electric power supply feed to the coolant pump and repair it, if necessary. Additionally, the routing of the electric line will be modified in order to prevent potential contact with the engine fan.
Parts A remedy is not yet available. An additional notification will be sent once a remedy is available.
Vehicles Affected
Vehicle Model Year(s) 2019
Vehicle Model CLS-Class
Vehicle Populations
Total Recall Population 3,257
Total Vehicles in Dealer Inventory 385
Given this notice, it is a violation of Federal law for a dealer to sell or lease any new MY19 CLS-Class vehicles in dealer inventory covered by this notification until the vehicle has been repaired.  Once the remedy is available, the vehicles will be flagged as “OPEN” and Work Instructions will be available in Star TekInfo Once the repair is complete, the vehicle may be sold or leased.

Loaner and demonstrator vehicles may continue to be driven, but must not be retailed until repaired.

Additionally, given this notice, it is a violation of Federal Law for car rental companies to rent new MY19 CLS-Class vehicles covered by this notification until the vehicle has been repaired.

Next Steps/Notes
Customer Notification Timeline The customer letter will be mailed approximately one week after the remedy becomes available.
AOMS/SOMS AOMs – This recall may generate questions from your dealers. Please forward this notice to your dealers ASAP.
Rental Fleet Partners This recall may affect vehicles in your fleet. Please contact your respective MBUSA fleet representative for further information and next steps. For repairs, please contact your preferred MBUSA dealer.
While we regret any inconvenience this may cause, MBUSA is determined to maintain a high level of vehicle quality and customer satisfaction. Please refer all customer inquiries to the Customer Assistance Center at 1-800-FOR-MERCEDES.

 


1 Affected Product

Vehicle

MAKE MODEL YEAR
MERCEDES BENZ CLS450 2019

4 Associated Documents

Manufacturer Notices(to Dealers,etc) – Recall Campaign Initial Notification Wiring Harness for Electric Coolant Pump MY19 CLS-Class (257 Platform)

RCMN-19V605-3242.pdf 510.682KB

Download (PDF, 499KB)


Defect Notice 573 Report

RCLRPT-19V605-4118.PDF 216.094KB

Download (PDF, 211KB)


Recall Acknowledgement

RCAK-19V605-2263.pdf 244.953KB

Download (PDF, 239KB)


Chronology

RMISC-19V605-9875.pdf 66.719KB

Download (PDF, 65KB)


Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=19V605&docType=RCL


 

Bestseller No. 1
Mercedes Benz Engine Coolant/Antifreeze (1 Gallon) (Blue Color)
  • Contains a bittering agent
  • Fomulated to protect aluminum parts
Bestseller No. 2
GENUINE MERCEDES MB Genuine Antifreeze (2002-2012)
  • MB Spec 325.0
  • Applicable to all Sprinters and other MB vehicles
  • Blue coolant can not mix with yellow coolant
  • Replaces Q10030002
  • Contains a bittering agent
Bestseller No. 3
OEM 86-324BOEME Premium Antifreeze 50/50 Extended Life-Euro I Blue, 128. Fluid_Ounces
  • Application: Newer model foreign light duty gasoline or diesel engine vehicles
  • Recommended for: BMW, Jaguar, Mercedes-Benz, Mini, Smart, Volvo
  • Formulation Features: Low silicate OAT. Nitrite, amine & phosphate (NAP) free.
  • Meets or exceeds performance requirements of: ASTM D3306, D6210-10, D7583; BS6580
  • Provides excellent coolant-to-coolant compatibility with all coolant technology, but for best results, do not mix with conventional high pH, phosphate, borate or silicate based antifreeze.
Bestseller No. 4
SCITOO 2205000049 Coolant Reservoir Bottle Coolant Overflow Tank Fits for Mercedes Benz
  • FITMENT: The coolant tank reservoir fits for 2000-2006 Mercedes-Benz CL500,2002-2008 Mercedes-Benz G500,2006 Mercedes-Benz S350,2001-2002 Mercedes-Benz S55 AMG,2006 Mercedes-Benz S65 AMG
  • PERFECT FIT: The coolant overflow tank recovery bottle direct replacement for a proper fit every time.
  • ADVANTAGE: The expansion tank is used in the closed water circulation system to balance the water volume and pressure, avoiding frequent opening of the safety valve and frequent replenishment of the automatic water supply valve.
  • BENEFIT: Help to reduce oil dilution, cylinder bore wear, fuel consumption, exhaust emission, and improve efficiency of the heating system.
  • NOTES: Please check the description or use the year,make,model in the Amazon Fitment Filter System in the top left corner to confirm the compatibility before placing order.
Bestseller No. 5
Dorman 603-258 Coolant Reservoir
  • Complete assembly - includes reservoir cap
  • Direct replacement - fits and functions like original equipment for a trouble-free installation
  • Excellent value - OE quality
  • Quality construction - manufactured from premium materials for a long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage
Bestseller No. 6
BOXI Coolant Reservoir Overflow Expansion Bottle Tank With Cap For Mercedes-Benz C230 C240 C280 C320 C350 C55 AMG CLK320 CLK350 CLK500 CLK55 AMG CLK550 CLK63 AMG 2035000049/603-284
  • Designed and manufactured to match OEM parts
  • Keep your engine at the right temperature under a variety of conditions
  • Complete and ready for installation, no modifications required
  • Quality tested to ensure trouble-free installation and performance
  • IMPORTANT*** TO VERIFY FITMENT. Please See Product Description
Bestseller No. 7
Bapmic 2115010625 Engine Coolant Expansion Tank Breather Pipe for Mercedes-Benz W211 E320 E350
  • For Mercedes-Benz E280 E300 E320 E350
  • Aftermarket Product with Premium Quality. 1 Year Warranty
  • Enhance Performanc.Easy Installation.High Reliability
  • Perfect Match for the Original Car.Please verify Fitment or Application
  • Replacement OEM ( Original Equipment Part) Number: 2115010625, 211 501 06 25. Other Part Number: CHE0464
Bestseller No. 8
ROADFAR Premium New Radiator Coolant Overflow Tank Fits For 2007-2011 Mercedes-Benz CLS550 3C3Z8A080AE 2007-2010 Mercedes-Benz CLS63 AMG 0005018215 2115000049
SaleBestseller No. 9
Mean Mug Auto 13518-32019B Coolant Temperature Sensor with O-Ring - For: Mercedes-Benz - Replaces OEM #: 000-542-51-18
  • Built for the efficiency to reliably change resistance as the temperature changes; which helps with many PCM functions.
  • Precision-engineered to maintain a secure electrical connection while your engine puts it through varying temperatures and vibrations.
  • Designed to last years with your vehicle. Just replace your old engine coolant sensor and never think about it again.
  • Interchangeable with the OEM part numbers listed below to affordably fix your vehicle.
  • Here's what you'll receive: 1x engine coolant temperature sensor with lifetime warranty.
Bestseller No. 10
Dorman 603-283 Pressurized Coolant Reservoir
  • Complete assembly - includes reservoir cap
  • Direct replacement - fits and functions like original equipment for a trouble-free installation
  • Excellent value - OE quality
  • Quality construction - manufactured from premium materials for a long service life
  • Ensure fit - to make sure this part fits your exact vehicle, input your make, model and trim level into the Amazon Garage

Last update on 2019-10-13 / Affiliate links / Images from Amazon Product Advertising API

Last update on 2019-10-13 / Affiliate links / Images from Amazon Product Advertising API

Leave A Comment

Your email address will not be published. Required fields are marked *

*

This site uses Akismet to reduce spam. Learn how your comment data is processed.