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(DIN 51562-1 method) is stated in the following specifications:
VW TL 52 146 00: ≤1100 cSt. VW TL 52 146 01: ≤1400 cSt.
Mannol Central Hydraulic Fluid (CHF) makes a claim against Volkswagen specification TL 52 146 on the container and supporting technical data sheet. The Complainant tested the product and achieved a value of 1738.8 cSt. This value is in excess of the specification requirements and therefore could impair the performance of the braking system at low temperatures, which could have safety implications.
The packaging and TDS also suggests that the product can be used in place of Pentosin CHF-11S. Although this is a product and not a specification, there is a Kinematic Viscosity (KV) -40°C figure of ≤1100 cSt shown on Pentosin technical data sheets. Therefore, if Mannol CHF was used in Pentosin CHF-11S applications where there is a critical low temperature requirement, the system would not function effectively, with the possibility of poor brake/ suspension/power steering performance, resulting in safety issues.
The following specifications / part numbers claim to be equivalent to Pentosin CHF11S and should therefore have the same low temperature performance characteristics and requirements:
Volvo 1161529-1 Ford WSS-M2C204-A Fendt X 902.011.622 MB 345.0 VAG G 002 000
In summary, the Complainant alleged that Mannol CHF does not meet the KV - 40°C limits stated in the quoted specifications referenced above. The failure to comply could compromise vehicle safety.
VLS reviewed the complaint, procured a sample of the product and tested it for KV -40°C. The findings are in line with that of the Complainant, that the product does not meet the VW specifications and is not compliant. The summary test results are as follows:-
64 LUBE MAGAZINE NO.186 APRIL 2025
Test Method Specification DIN 51562-1
Test KV -40°C, cSt
VW TL 52 146 00 specification ≤ 1100 VW TL 52 146 01specification ≤ 1400 VLS Sample procured and tested 2610
Complainant Sample Test Result Claimed
1738.8
VLS did not receive a response to the complaint from the Named Party and so VLS is reporting that the product is non-compliant and does not meet its stated performance claims in full.
The case is subject to a six month review in line with VLS’s stated processes and if found to be non- compliant at this stage, it will be reported to Trading Standards.
On 13/12/2023 VLS undertook a six month review of the above product. As part of this review VLS sourced and tested a new sample of the product. The new sample which was a different batch to the original sample tested was still out of specification as follows;-
VW TL 52 146 00 VW TL 52 146 01 VLS Sample 1
VLS 6-month review sample Complainant Sample
DIN 51562-1 KV -40°C, cSt ≤ 1100 ≤ 1400 2610 2576
1738.8
Consequently VLS believes that the formulation has not been modified in the second sample and there is no evidence of the Lubricant Marketer taking action to address the non- compliance.
The details of the case would be escalated to VLS’s Primary Authority partner Bucks & Surrey Trading Standards on a non-compliant basis.
VLS 010183 – Westway Lubricants 75W-90 Synthetic Gear Oil
On 8th February 2023 the case was accepted by VLS.
VLS received a complaint about the above product concerning its compliance with SAE J306. The complainant stated that they procured and tested
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