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Haynes Used Car Buying Guide
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Check Engine Light Tips
1. The Check Engine light tells you the computer found a problem with your vehicle's running condition.
2. If the vehicle is drving OK, a Check Engine light is not a reason to pull over. But get the problem fixed soon.
3. In testing areas, you will fail your emissions test if the Check Engine light is on.
4. Fuel economy generally suffers when the Check Engine light is on.
5. An extended warranty covers emissions-related components that can trigger the Check Engine light. More information is at: epa.gov/obd/warranties.htm.
6. When the Check Engine light is on, one or more "trouble code(s)" are stored in the computer.
7.
You can read and erase trouble codes using inexpensive code-reader
tools from auto-parts stores; the tools are very easy to use.
8.
The problems identified by the codes are frequently easy to fix (such
as a loose gas cap), but some are complex, requiring professional
diagnosis.
9. A trouble code
indicates a circuit where the problem was identified, not necessarily
the faulty component. Diagnosis is often necessary.
10.
The Haynes OBD-II Techbook (Book #10206) is your source for late-model
code information. If you have a 1995 or earlier model, get Book #10205.
Both books can be found in the Techbook section of this site.
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63012
Mercedes-Benz Diesel 123 Series Haynes Repair Manual covering all 200D, 220D, 240D, 240TD, 300D, 300CD, 300TD models, designated W123 Series 4-cyl & 5-cyl including turbo-diesel (1976 thru 1985)
Our Price: $24.95
Sale Price: $22.45
With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the vehicle. We learn the best ways to do a job and that makes it quicker, easier and cheaper for you. Our books have clear instructions and plenty of photographs that show each step. Whether you’re a beginner or a pro, you can save big with Haynes!
--Step-by-step procedures
--Easy-to-follow photos
--Complete troubleshooting section
--Valuable short cuts
--Color spark plug diagnosis
...
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63015
Mercedes-Benz 190 Haynes Repair Manual covering 190 models with 4-cylinder gasoline engine (1984 thru 1988)
Our Price: $24.95
Sale Price: $22.45
With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the vehicle. We learn the best ways to do a job and that makes it quicker, easier and cheaper for you. Our books have clear instructions and plenty of photographs that show each step. Whether you’re a beginner or a pro, you can save big with Haynes!
--Step-by-step procedures
--Easy-to-follow photos
--Complete troubleshooting section
--Valuable short cuts
--Color spark plug diagnosis...
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63020
Mercedes-Benz 230, 250 & 280 Haynes Repair Manual covering all 230, 250 & 280 models with 6-cylinder engine (1968 thru 1972)
Our Price: $24.95
Sale Price: $22.45
With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the vehicle. We learn the best ways to do a job and that makes it quicker, easier and cheaper for you. Our books have clear instructions and plenty of photographs that show each step. Whether you’re a beginner or a pro, you can save big with Haynes!
--Step-by-step procedures
--Easy-to-follow photos
--Complete troubleshooting section
--Valuable short cuts
--Color spark plug diagnosis
...
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63025
Mercedes-Benz 280 123 Series Haynes Repair Manual covering 280 123 Series 6-cylinder gasoline engine (1977 thru 1981)
Our Price: $24.95
Sale Price: $22.45
With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the vehicle. We learn the best ways to do a job and that makes it quicker, easier and cheaper for you. Our books have clear instructions and plenty of photographs that show each step. Whether you’re a beginner or a pro, you can save big with Haynes!
--Step-by-step procedures
--Easy-to-follow photos
--Complete troubleshooting section
--Valuable short cuts
--Color spark plug diagnosis
...
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63030
Mercedes-Benz 350 & 450 Haynes Repair Manual covering 350 SL Roadster, 450 SL/SLC Coupe & Roadster, 450 SE/SEL V8 Sedan (1971 thru 1980)
Our Price: $24.95
Sale Price: $22.45
With a Haynes manual, you can do it yourself…from simple maintenance to basic repairs. Haynes writes every book based on a complete teardown of the vehicle. We learn the best ways to do a job and that makes it quicker, easier and cheaper for you. Our books have clear instructions and plenty of photographs that show each step. Whether you’re a beginner or a pro, you can save big with Haynes!
--Step-by-step procedures
--Easy-to-follow photos
--Complete troubleshooting section
--Valuable short cuts
--Color spark plug diagnosis
...
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