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My 2007 VW EOS with 36k miles is burning 4 qt of oil in 2,500 miles. I have an excellent mechanic who charges $60. Per hour. I am concerned about the catalytic converter & wear & tear on the engine. Would it make sense to diagnose the problem & fix it

(2007 Volkswagen Eos)
in Granville, MA on April 15, 2016
Black smoke coming from the tail pipe all the time, Low exceleration, 36,455 miles.
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Popular Answer
on April 15, 2016
'Black' smoke from tail pipe is indicative of a rich running engine and may contribute to oil consumption as oil is thinned out from excessive fuel entering cylinders and mixing with crankcase oil .. Suggest having your mechanic do a full diagnostic scan test to determine why engine is running rich and proceed from there.
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Technical Bulletin
Page 1 of 4
© 2014 Volkswagen Group of America, Inc.
All rights reserved. Information contained in this document is based on the latest information available at the time of printing and is subject to the copyright and other
intellectual property rights of Volkswagen Group of America, Inc., its affiliated companies and its licensors. All rights are reserved to make changes at any time without notice.
No part of this document may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or
otherwise, nor may these materials be modified or reposted to other sites, without the prior expressed written permission of the publisher.
Model(s) Year(s) Engine Code Trans. Code VIN Range From VIN Range To
All (Except
Routan) 2000-2015 All All All All
17 14 03 August 22, 2014 2017813 Supersedes T.B. V171303 dated October 3, 2013 to include a “Tip” on where
to locate Oil Consumption Test and include 2015 model year applicability.
Oil Consumption Measurement
Customer states oil consumption is higher than the Volkswagen oil consumption standard of up to 0.5 quarts per
600 miles, or 0.5 liters per 1000 km.
Technical Background
In order to provide effective lubrication and cooling of internal engine components, all internal combustion engines
consume a certain amount of engine oil. Oil consumption varies from engine to engine and may change
significantly over the life of the engine.
Typically, engines with specified break-in periods consume more oil during the break-in period, and the oil
consumption will stabilize after the break-in period. Refer to the Owners Manual for specific break-in procedures.
Under normal conditions, the rate of oil consumption depends on the quality and viscosity of the oil, the RPM at
which the engine is operated, the ambient temperature and road conditions.
Further factors include the amount of oil dilution from water condensation or fuel residue and the oxidation level of the oil.
Before testing or attempting repair, explain Technical Background to the customer.
Prior to beginning Part # 1 of this test, visually inspect the engine for any signs of leaks. If leaks are present,
contact Volkswagen Technical Assistance Center with findings.
If the customer complains that their engine is apparently consuming oil in excess of the Volkswagen oil
consumption standard above, an oil consumption test must be performed using the test plan in the VAS 5051B,
5052/A, 6150/X, 6160 tester, before any repair is carried out.
Oil Consumption Test, Part # 1
Using the VAS tester, navigate to the Oil consumption measurement using one of the provided methods below:
• Diagnosis Operating Mode: Special functions top tab >> 17 – Sub systems, marginal conditions >> 01 – Oil
consumption measurement >> Select “Perform Test” button.
If the test is not located using the path above, use the search feature to find the “Oil Consumption Measurement”
test plan.
Oil Consumption Test, Part # 2
1. When the customer returns the vehicle to the dealership after a minimum of 630 miles (1014 km), complete
part # 2 of the oil consumption test plan using ODIS or the VAS 5051B, 5052/A, 6150/X, 6160.
2. Contact the Volkswagen Technical Assistance Center (TACS) with the results.
3. The results and diagnostic log must be sent to the Volkswagen Technical Assistance Center (TACS) before
any repairs are performed.
GFF oil consumption test can also be used for older engines not listed in the GFF test plan, since the test and
procedure is identical for all engines. Please use any current engine code.
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