WASHINGTON · MAIL-IN SERVICE
Mercedes W164/X164/W251 EIS Repair in Washington
Ship your module from Seattle or anywhere in Washington — we complete the work in 24 hours and ship it back with return shipping included.
$399 flat 24-Hour Turnaround ~3 day USPS from WA
What you get
- Component-level repair of the failed EIS (no donor required)
- Original VIN binding + key pairing preserved
- Full bench-test with your supplied working key
- No additional ECU or ESL re-programming needed after install
- 24-hour bench turnaround
- Return shipping included
- Photo of completed bench-test before shipping back
Shipping timeline — Washington ↔ Arlington TX
Typical round-trip from Seattle or anywhere in Washington:
Day 0
You ship
USPS Priority from WA, ~$13
Day 3
We receive
Workshop opens + inspects
Day 4
Work done
24-hour bench turnaround
~Day 7
Back to you
FREE return shipping
Washington FAQ
Common questions from customers shipping from Washington.
How long does shipping take from Washington to your Arlington TX workshop?
USPS Priority Mail from Seattle, WA reaches our Arlington workshop in about 3 business days. UPS Ground similar. We start work the same day your module arrives, and ship back next business day with return shipping included.
How much does it cost to ship from Washington?
USPS Priority Mail flat-rate from Washington to Arlington TX runs about $13. Customer pays shipping to us; return shipping back to Washington is included in the $399 service price.
Do you accept modules from Washington?
Yes — we ship to and from all 50 US states including Washington. Our Arlington TX workshop receives modules from Seattle and the rest of Washington every week.
Is there a mercedes w164/x164/w251 eis repair shop in Seattle I should use instead?
Most local Seattle shops don't offer mercedes w164/x164/w251 eis repair as a bench service — they'd send the part to someone like us anyway. Going direct saves the markup and shortens the timeline. Total round-trip from Seattle: typically 5-7 days.
How is this different from your EIS Cloning service?
Cloning copies your EIS data onto a donor unit (you keep using the donor; original is set aside). Repair fixes the failed components INSIDE your existing EIS so you keep the original. Repair is cheaper, no donor needed, and preserves the factory VIN binding.
Do I need to send a key?
YES — at least one working key. We bench-test the repaired EIS with your actual key to verify the immobilizer chain handshake works end-to-end. Without a key, we can't verify the repair.
What if no keys work at all?
You need the Key Replacement via EIS service instead ($150). We program a fresh key directly to the EIS in that case.
Full details
See the complete Mercedes W164/X164/W251 EIS Repair service page
Compatibility list, what it fixes / doesn't fix, shipping instructions, warranty.
Same service from other states:
Ship from Washington today
Pay now, get the Arlington TX shipping address by email, drop it in the mail. Full round-trip from Seattle: about a week.