P0128 and P0128 (pd) error codes - Thermostat - Bimmerfest - BMW Forums

Welcome to Bimmerfest -- The #1 Online Community for BMW related information! Please enjoy the discussion forums below and share your experiences with the 200,000 current, new and past BMW owners. The forums are broken out by car model and into other special interest sections such as BMW European Delivery and a special forum to voice your questions to the many BMW dealers on the site to assist our members!

Please follow the links below to help get you started!

Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - E65 / E66 (2002 - 2008)

7 Series - E65 / E66 (2002 - 2008)
Discussion of BMW's 4th generation E65/E66 7 Series flagship. The E65 generated much controversy, due to its radical styling and iDrive user difficulties. Nonetheless, the E65 broke records to become the best-selling 7-series iteration ever, especially after its 2005 facelift.

Thread Tools Display Modes
Old 11-21-2011, 12:38 PM
qualpro qualpro is offline
Registered User
Location: ca
Join Date: Jan 2011
Posts: 20
Mein Auto: 2006 750Li
P0128 and P0128 (pd) error codes - Thermostat

Hello all,

I have an engine sign on the dashboard. The system check shows all ok. All consumables, brakes, oil etc checks out ok.
Had a code reader plugged in and it came up with P0128 and P0128 (pd) codes - Coolant temperature and Thermostat problem.

I checked the coolant level and it was below minimum level - so I added some to bring the level between max and min levels. Drove the car this morning the sign did not go away.

The heater does not seem to work when I tried to raise the inside temp to about 80 degrees. The fan kept blowing but no hot air.

Seems like I need to replace the Thermostat? If so can some one send me the DIY video link or step by step instructions?
The Thermostat cost around $114.00 original, and about $58.00 generic. However the original has a slanted connector end vs the generic has a straight connector end. Please advise if the generic will work or not.

Thanks for all the feedback and advise.
Reply With Quote
Old 11-21-2011, 02:47 PM
mikewerks's Avatar
mikewerks mikewerks is offline
Officially Welcomed to the 'Fest
Location: PNW
Join Date: Apr 2008
Posts: 298
Mein Auto: 02' 745i
Don't get the generic. I bought a Whaler t-stat off E-Bay 64.00 and it was an O.E unit with the BMW emblem shaved off. Needles to say it was a direct fit and a fairly easy job bottom bolt was the most difficult but with a 1/4 inch extension and swivel got the job done. I also changed the coolant at that time.
Reply With Quote

See More Related BMW Stories

coolant temperature, p0128 (pd) error code, thermostat

Forum Navigation
Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 7 Series & 8 Series > 7 Series - E65 / E66 (2002 - 2008)
Today's Posts Search
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump

All times are GMT -7. The time now is 10:03 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
© 2001- VerticalScope Inc. All rights reserved.