TSB: MCI E SERIES, E4500, E4500C, J SERIES, J4500, J4500C (1998–2011)

Bulletin SB-3043 — September 28, 2010

Bulletin Details

Bulletin IDSB-3043
ManufacturerMCI
ModelsE SERIES, E4500, E4500C, J SERIES, J4500, J4500C
Model Years1998–2011
Date IssuedSeptember 28, 2010
Date Added to NHTSANovember 19, 2010
ComponentSERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
Vehicles Affected135 combinations

What is a TSB?

A Technical Service Bulletin is a document issued by the vehicle manufacturer to inform dealership technicians about a known issue and the recommended repair procedure. TSBs are not mandatory recalls — they serve as repair guidance for common problems.

If your vehicle has this issue, bring this bulletin ID to your dealer. If under warranty, the repair should be covered at no cost.

Summary

MCI: TAG UNLOAD VALVE ASSEMBLY. EFFECTIVE WITH UNIT NUMBER 65614, MCI HAS MADE DESIGN CHANGES TO THE TAG UNLOAD VALVE ASSEMBLY INSTALLATION ON SOME MODEL COACHES. THE LONGER LIFE VALVES WILL IMPROVE THE DURABILITY OF THE TAG UNLOAD VALVE

Affected Vehicles

MakeModelYearComponent
MCI E4500 2011 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2011 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2011 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2011 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2011 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2010 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2010 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2010 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2010 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2010 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2009 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2009 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2009 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2009 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2009 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2008 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2008 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2008 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2008 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2008 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2008 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2008 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2008 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2008 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2007 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2007 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2007 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2007 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2007 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2007 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2007 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2007 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2007 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2006 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2006 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2006 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2006 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2006 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2006 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500C 2006 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500C 2006 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500C 2006 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2006 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2006 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2006 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500C 2006 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500C 2006 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500C 2006 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2005 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2005 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2005 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2005 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2005 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2005 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500C 2005 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500C 2005 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500C 2005 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2005 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2005 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2005 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2004 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2004 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2004 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2004 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2004 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2004 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500C 2004 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500C 2004 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500C 2004 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2004 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2004 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2004 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2003 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2003 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2003 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2003 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2003 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2003 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500C 2003 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500C 2003 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500C 2003 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2003 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2003 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2003 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2002 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2002 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2002 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2002 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2002 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2002 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500C 2002 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500C 2002 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500C 2002 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2002 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2002 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2002 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 2001 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 2001 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 2001 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2001 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2001 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2001 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2001 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2001 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2001 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 2000 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 2000 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 2000 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J4500 2000 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J4500 2000 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J4500 2000 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E4500 1999 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E4500 1999 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E4500 1999 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 1998 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 1998 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 1998 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI E SERIES 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI E SERIES 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI E SERIES 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE
MCI J SERIES 034300 SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DIFFERENTIAL PROPORTIONAL VALVE
MCI J SERIES 042300 SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
MCI J SERIES 042700 SERVICE BRAKES, AIR:SUPPLY:QUICK RELEASE VALVE

Related MCI Recalls

CampaignModelYearComponentSummary
E4500 1998 VISIBILITY:GLASS, SIDE/REAR Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E45...
D4500 2006 VISIBILITY:GLASS, SIDE/REAR Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E45...
D4500 2005 STRUCTURE:BODY:DOOR Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E45...
D4500 2004 STRUCTURE:BODY:DOOR Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E45...
D4500 2003 STRUCTURE:BODY:DOOR Motor Coach Industries (MCI) is recalling certain 102DL3, 102D3, MC12PTV, E45...

What Should You Do?

If your vehicle is affected by this TSB, contact your authorized MCI dealer. Bring this bulletin ID (SB-3043) when you visit. If under warranty, the repair should be free. If your warranty has expired, ask about goodwill coverage — manufacturers sometimes cover TSB-related repairs beyond the warranty period.

Frequently Asked Questions

A recall is a mandatory safety fix — the manufacturer must repair every affected vehicle for free. A TSB is an advisory document that describes a known issue and the recommended fix, but repairs are not required. However, some TSBs eventually lead to recalls if the issue poses a safety risk. TSBs are generally issued for quality or performance problems, while recalls address safety defects.

If your vehicle is still under the manufacturer's warranty, TSB-related repairs are typically covered at no cost. If your warranty has expired, you can ask the dealer about goodwill or customer assistance programs. Many manufacturers will cover or partially cover repairs for well-known issues, especially if the TSB was issued recently or affects a large number of vehicles.

Check the make, model, and model year listed above against your vehicle. If they match, this bulletin likely applies. However, TSBs may only affect vehicles with specific production dates, VIN ranges, or configurations. Your dealer can confirm by entering your VIN into their service system, which will show all applicable TSBs and recalls.

This data comes from the National Highway Traffic Safety Administration (NHTSA). Manufacturers are required to submit copies of all communications (including TSBs) sent to their dealers to NHTSA. The agency makes this data publicly available as part of its vehicle safety monitoring program.